Which of the following is true about valence electrons in metals? They can move freely around the metal atoms in the lattice O They are fixed rigidly in place O There are always at least 5 valence electrons per atom

Which of the following is true about valence electrons in metals? They can move freely around the metal atoms in the lattice O They are fixed rigidly in place O There are always at least 5 valence electrons per atom

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter7: Chemical Bonding And Molecular Structure

Section: Chapter Questions

Problem 7.30PAE: 7.30 The bond in HF is said to be polar, with the hydrogen carrying a partial positive charge. For...

See similar textbooks

Related questions

Q: When metals react, they lose a valence electron and form anions. lose a valence electron and form…

A: Metals are electron rich . Metal are electropositive in nature. Because of the electropositive…

Q: Which option correctly describes the pattern of valence electrons on the periodic table? O The…

A: Given : Valence electron To find : Pattern of valence electron from left to right and top to bottom

Q: Which of the following has the lowest first ionization energy? Rb Si P Al S

A: as along the period the first ionisation increases and along with the group the first ionisation…

Q: Most metals are solids except for which is a 3. 4. Most non-metals are solids or gases except for…

Q: Distinguish among ionic, covalent, and metallic bonding. Reset Help Each atom in the substance is…

A: In ionic bonding, a metal is bonded to a non-metal. Ionic bonds are formed by the complete transfer…

Q: What state(s) of matter are the hydrogen halides present in at room temperature? gas solid O liquid…

A: The hydrogen halides are colorless gases in room temperature Example- HCl,HBr,HI The hydrogen…

Q: The Octet Rule When main group elements react, they tend to acquire eight outer-shell electrons (ns…

Q: Briefly explain why steel, an alloy of iron, is usedto build the supporting structure of many…

A: Given: Why steel, an alloy of iron, is used to build the supporting structure of many buildings.

Q: Metals can be rolled into sheets and stamped into various forms. In contrast, diamond is very hard…

A: Metals posses the property of being cast into sheets and other forms while as diamonds do not…

Q: 1. What subatomic particle is free to drift (mobile) in a metal giving metals unique properties such…

Q: Explain how the iron atom can form both an iron 2+ ion and an iron 3+ ion.

A: Iron atom is a transition metal shows variable oxidation state i.e +2 and +3 which can be…

Q: Directions: Below is the Concept Map. Fill in the boxes with the word or words that they are…

A: In the question, chemical bond (chemical bonding) given, which is the force exist between two or…

Q: 1. Write the formula of the following compounds: a. Strontium Hydride b. Radium peroxide c. Cesium…

A: A chemical formula is a way of presenting a molecule in terms of the atoms that the molecule is…

Q: On the basis of ionic charge and ionic radii given in Table 1, predict crystal structures for the…

A: A molecule will be stable molecule if it contains atom such that total charge on the molecule is…

Q: In general terms, how does each of the following atomic properties influence the metallic character…

A: (a)

Q: Name each ionic compound. In each of these compounds, the metal forms more than one type of ion. (a)…

A: The name of each ionic compound has to be given,

Q: what holds a unit together in a crystal of an ionic compound?

A: ●Ionic compounds held together by ionic bonds. ●The strong intermolecular force of attraction…

Q: The reason why can ionic substances conduct electricity when in solution or molten, but not when…

Q: Magnesium has 2 electrons in its outer shell. Oxygen has six electrons in its outer shell. How does…

Q: Metals form which of the following? O Negatively charged anions O Negatively charged cations O…

A: Ions are atoms or molecules which are electrically charged. Cations are positively charged ions and…

Q: Describe the process you would go through to find the number of valence electrons for any of the…

A: The distribution of electrons in an atom can be shown with the help of electronic configuration. The…

Q: Write the complete electron configuration for Cl- ion. What trend in electronegativity occurs as you…

A: The atomic number of Chlorine atom=17 The number of electrons in the chlorine atom =17 The number of…

Q: Why does sIiver hot have the expected electron configurations? completely filled orbitals are more…

A: Atomic number of silver = 47 Silver is a transition metal, which implies that the occupied d orbital…

Q: which group of metals are most reactive metals? How many valance electrons does this group of metals…

A: The metals are electropositive. Metal atoms donate electrons easily. The amount of energy required…

Q: Which of the following is the reason that metals conduct electricity. A Electrons and protons in the…

A: Option D is correct answer.

Q: Which combination of elements would most likely form an ionic compound? Group of answer choices…

A: Ionic compounds are generally formed by combination of one electropositive metallic element and…

Q: bonds involves electrons. Which of the following statements, is an incorrect description of ionic…

A: Ionic bond is formed by transferring of electrons while covalent bond is formed by sharing of…

Q: The oxygen atom of a water molecule is bigger so it: attracts electrons less strongly than the…

A: Water molecule has 1 hydrogen atom connected to 2 oxygen on both sides. A covalent bond is…

Q: For each mineral class list out the anion that defınes the group and the appropria charge Note:…

A: Minerals are usually grouped or classified based on anions. The contribution of anion is significant…

Q: 1. Which would most likely form a metallic bond with gold? a. chlorine b. manganese c. oxygen d.…

A: Metallic bonds are formed in between metal atom which is one of the strongest bond in lattice of…

Q: Among the following ions, which has the SMALLEST radius? Select one: O a. Mg2+ O b. Be2+ Oc. K* O d.…

Q: 1. When an atom gives off each one or more electrons to another atoms the kind of substance will…

A: 1) Ans: C (ionic compound) when atom looses one electron convert into cation…

Q: The atomic models above represent the electron configuration of Oxygen (0) and Hydrogen (H). Which…

A: The given question can be answered using the lewis structure of the water molecule. Lewis Structure…

Q: When two elements combine to form a compound, the greater the difference in metallic character…

Q: Given the following information, determine which element of the periodic table is being described as…

A: Elements are arranged in the periodic table in the increasing order of their atomic number. There…

Q: Halogens tend to form anions because A) losing electrons will fill their octet faster than gaining…

A: For example, The electronic configuration of chlorine atom and is ions are,

Q: Alloys have numerous advantages in industrial applications. Which combination of metals is…

A: Applying composition of alloys.

Q: 8. A mixture of sand and NH4CI can be separated by method. 9. Define latent heat of fusion. Give its…

A: 8. Sublimation Sublimation is the process by which a solid substance on heating converts…

Q: Let’s look at the table and fill in the chart. BOND TYPE COLUMNS/GROUPS (choose I, II, III, IV, V,…

A: Group III belongs to boron family which consists boron, aluminum, gallium , indium and thallium. And…

Q: Give the correct symbol and name for the element being described in each of the following. (i)…

A: Given statement is : Give the correct symbol and name for the element being described in each ofthe…

Q: Indicates the number of electrons available for bonding in Periodic Table to elemental group O…

A: Please find your solution below : Periodic table is an organised arrangement of elements in order of…

Q: Which of the following is true of the halogens in periods two and three when comparing them to other…

A: In a period, on moving from left to right, ionization energy gradually increases. Halogens have…

Q: E is a made up element and contains 6 valence electrons Calculate the number of valence electrons in…

A: The number of valence electrons in E3 = Valence electrons in a E x 3 = 6 x 3 = 18

Q: Match the following characteristics to the compound type Low weight are gases are room…

A: Given compound types - Ionic, Covalent , Metallic Ionic compounds are the compounds made up of…

Q: The presence of partial charges on liquid molecules repel the charged ions, causing ions to bind…

A: We know that due to the electronegativity difference between the two covalently bonded atoms there…

Q: Judging from their relative positions in the Periodic Table, which element in each set is more…

A: Periodic table is a set of elements that are arranged in increasing order of the atomic numbers.…

Q: Metals that form +1 cations and +2 cations are found in Group ____ and Group ____ , respectively,…

A: When metal loses 1 electron then it will form +1 cation and when the metal loses 2 electrons then it…

Q: 2. Count the electrons in the following compounds and indicate the electron count per metal unit.…

Concept explainers

Group 15 elements

The elements of group 15 are phosphorus, nitrogen, bismuth antimony, and arsenic. The most abundant element which is present in the air is nitrogen and the percentage of nitrogen present in the air is 78%. In the free state, the elemental nitrogen is present as diatomic gas (N2). In the organic matter obtained from plants and animals, phosphorus is the dominant element present. In nucleic acids, phosphate groups are present. Phosphates are also found in teeth and bones. The other elements arsenic, bismuth, and antimony are found as sulfides. Arsenopyrite, bismuth glance, and stibnite are examples of sulfides of arsenic, bismuth, and antimony respectively.

Question

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

CH3COCH3 (acetone) is a common laboratory solvent that is often used in nail polish remover. Its Lewis structure and space-filling molecular image are shown here: Acetone is a polar molecule; the oxygen end has a slightly negative charge (oxygen is more electronegative), whereas the carbon and hydrogen end has a slightly positive charge. In liquid acetone, the molecules are attracted to each other via these polar ends-the positive end of one molecule is attracted to the negative end of its neighbor-and therefore align as shown here: Draw a Lewis structure and space-filling molecular image for CH2Cl2 (dichloromethane), another common laboratory solvent. Is the molecule polar? Which end of the molecule has a slightly negative charge? Which end has a slightly positive charge? Draw several space-filling molecular images of CH2Cl2 showing how they align in liquid dichloromethane.
If lithium and fluorine react, which has more attraction for an electron? Why?
7.74 In a lattice, a positive ion is often surrounded by eight negative ions. We might reason, therefore, that the lattice energy should be related to eight times the potential of interaction between these oppositely charged particles. Why is this reasoning too simpler?
Predict the trend in lattice energy, from least negative to most negative, for the following compounds based on the ion charges and ionic radii; LiI, LiF, CaO, RbI.
7.30 The bond in HF is said to be polar, with the hydrogen carrying a partial positive charge. For this to be true, the hydrogen atom must have less than one electron around it. Yet the Lewis dot structure of HF attributes two electrons to hydrogen. Draw a picture of the electron density distribution for HF and use it to describe how the hydrogen atom can carry a partial positive charge. How can these two models of the HF bond (the electron density and the Lewis structure) seem so different and yet describe the same thing?
Element First Ionization Energy (kJImol) Second Ionization Energy (kiImol) I K 419 3050 Ca 590 1140 75. Use principles of atomic structure to answer each of the following: (a) The radius of the Ca atom is 197 pm; the radius of the Ca2+ ion is 99 pm. Account for the difference. (b) The lattice energy of CaO(s) is 3460 kJ/mol; the lattice energy of K2O is 2240 kJ/mol. Account for the difference. (c) Given these ionization values, explain the difference between Ca and K with regard to their first and second ionization energies. Element First Ionization Energy (kJ/mol) Second Ionization Energy (kJ/mol) K 419 3050 Ca 590 1140 (d) The first ionization energy of Mg is 738 kJ/mol and that of Al is 578 kJ/mol. Account for this difference.
The lattice energy of KF is 794 kJ/mol, and the interionic distance is 269 pm. The Na—F distance in NaF, which has the same structure as KF, is 231 pm. Which of the following values is the closest approximation of the lattice energy of NaF: 682 kJ/mol, 794 kJ/mol, 924 kJ/mol, 1588 kJ/mol, or 3175 kJ/mol? Explain your answer.
Carbon monoxide (CO) forms bonds to a variety of metals and metal ions. liS ability to bond to iron in hemoglobin is the reason that CO is so toxic. The bond carbon monoxide forms to metals is through the carbon atom: MCO a. On the basis of electronegativities, would you expect the carbon atom or the oxgen atom to form bonds to metals? b. Assign formal charges to the atoms in CO. Which atom would you expect to bond to a metal on this basis? c. In the MO model, bonding MOs place more electron density near the more electronegative atom. (See the HF molecule in Figs. 4-54 and 4-55.) Antibonding MOs place more electron density near the less electronegative atom in the diatomic molecule. Use the MO model to predict which atom of carbon monoxide should form bonds to metals.
Calculate the lattice energy of NaCl(s) using the following thermodynamic data (all data is in kJ/mol). Note that the data given has been perturbed, so looking up the answer is probably not a good idea. Na(s) ΔHsublimation = 88 kJ/mol Na(g) Ionization energy = 476 kJ/mol Cl-Cl(g) Bond energy = 223 kJ/mol Cl(g) Electron affinity = -369 kJ/mol NaCl(s) ΔH°f = -431 kJ/mol ____________ kJ/mol
Do nonbonding pairs occupy more, less or the same amount of space as bonding pairs? Explain using atleast one example
The lattice energy of an ionic compound is defined to be the amount of energy required to completely separate one mole of the solid into is gaseous ions. The lattice energy of Na2O is 2695 kJ/mol. Type the balanced chemical equation, including phase labels [ (s), (l), (g), (aq)] for the reaction that illustrates what happens when 2695 kJ of energy is added to 1 mole of solid Na2O .
Calculate the lattice energy for LiBr(s) given the following: sublimation energy for Li(s) +166 kJ/mol ΔHf for Br(g) +97 kJ/mol first ionization energy of Li(g) +520. kJ/mol electron affinity of Br(g) –325 kJ/mol enthalpy of formation of LiBr(s) –351 kJ/mol