element Mg.

Q: xplain why there is a large increase in ionic radium from silicon (42 pm) to phosphorus (212 p

A: This question has some mistake in it and the correct answer with explanation stating the actual…

Q: Which of the following is a property of Sodium? a) has a high ionization energy b) soft, silvery…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Which of the following halogens has the largest atomic radius? O Chlorine O lodine O Bromine O…

A: CORRECT Ans- Iodine has largest atomic radius among given halogen elements.

Q: Two elements in Period 4 are adjacent to one another in the periodic table. The ground-state atom of…

A: Given: The elements are of period 4. There are only s electrons in the valence shell of 1 element.…

Q: Which of the following statements regarding the inert pair effect is incorrect? a. The inert pair…

A: The electrons are arranged in orbitals in an atom. The orbitals can be categorized from lower energy…

Q: Use the periodic table to classify Ce (cerium) as a metal or a nonmetal, and then further classify…

A: Ce belongings to f block element and of Lanthanides series. and Lanthanides are metals.

Q: Calculate the packing fraction, mass defect and energy released in the formation of the argon atom.…

A: The packing fraction, mass defect and energy released in the formation of the argon atom are to be…

Q: 12 What element belongs to the s block? a. aluminum b. boron C fluorine d. helium 13. What element…

A: 12) The elements belonging to s block hydrogen are (H), lithium (Li), helium (He), sodium (Na),…

Q: Give reason for each of the following : (a) Molten alumina is a poor conductor of electricity. (b)…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: Explain how the following properties change across the periodic Table from group 1 to group 2, and…

A: In the modern periodic table, the vertical columns are called as Groups and the horizontal rows are…

Q: What effect do you think other halogen elements have on human health? State your prediction

A: Given To know effect of halogen elements on human health.

Q: Classify each of the following elements as a main-group or transition element. Also,specify whether…

A: Given elements: Na, Re, S, I, Kr, Mg, U, Si, B, Al, As, H.

Q: 3. The Statue of Liberty consists of copper plates on an iron skeleton. The statue was recently…

A:

Q: Consider the elements  Sulfur, Oxygen, Selenium, and Tellurium. 1. The element which has the…

A: The given elements are Sulfur, Oxygen, Selenium, and Tellurium. 1. The element which has the highest…

Q: 34. According to general trends in the periodic table, predict which element in each of the…

A: The general trend of metallic character is that  1. On moving from top to bottom in group , metallic…

Q: 7.105 A student is given samples of three elements, X, Y, andZ, which could be an alkali metal, a…

A: Element Y is yellow Solid. The alkali metals can be eliminated from consideration because every…

Q: Place the following elements in order of increasing first ionization energies: Si, P, S From lowest…

A: Ionization energy is the minimum amount of energy that an isolated, gaseous atom in the ground…

Q: Calculate the free electron per atom of metal A. The electrical conductivity of metal A is 6.0 × 10²…

A:

Q: Which of the following is paramagnetic  ?  Z of Ge = 32,  Se = 34, Cu = 29, O = 8, Ga = 31

A:

Q: Iodine (I) would have chemical properties most similar to which of the following elements Te Rb…

A: Generally we know In periodic table there are 7 periods and 18 groups. Now in a group, all elements…

Q: Which of the following properties of Group I elements decrease(s) with increasing atoinic number? 1…

A: An atomic number of an element is given by its number of protons present in the nucleous. As the…

Q: Lithium shows similarities with magnesium in its chemical behavior. What is the cause of these…

A: Lithium shows similarities with magnesium in its chemical behaviour because they have similar size…

Q: Consider the following five elements: Na      I     Be    Fr    F   The element with the largest…

A: 1. Answer - Ionization energy - ionization energy or ionisation energy is the minimum amount of…

Q: State one reason why caesium has a larger covalent radius than sodium.

A:

Q: Which one of the following statements is the best explanation for the increase of ionisation energy…

A: Given: energy of the alkaline earth metals increases when going up in a group.

Q: Which of the following elements would be expected to have a particularly large energy gap between…

A: The detailed solution of your question given below-- Ionisation energy is the absorbed energy when…

Q: Identify and encircle the element that has the lesser electron affinity. 1. vanadium and tantalum…

A: Electron affinity is defined as the change in energy (in kJ/mole) of a neutral atom (in the gaseous…

Q: Which of the following statements is/are TRUE? Choose all that apply. O Select all that apply Mg has…

A: Electron Affinity - It is the energy released from a neutral atom when an electron is added to it in…

Q: Place the following in order of increasing radius. Br Na' Rb' Rb* < Br < Na* Br < Na* < Rb* O Na' <…

A: When a species gain or lose electron then it is referred to as an ion.  In case of positive charge,…

Q: The atomic radius of sulphur is smaller than phosphorus, yet the first ionisation energy of…

A: Given information, The atomic radius of sulphur is smaller than phosphorus, yet the first ionisation…

Q: 18. The table to the right shows ist, 2nd, and 3rd ionization energies for 3 elements. Which of the…

A:

Q: What makes carbon such a unique element? a. Elemental carbon comes in two forms, diamond, and…

A: Atomic number of carbon is 6.  It's electronic configuration is 1s2,2s2 2p2 Carbon can form four…

Q: 20. Which of the following statement is NOT correct for the s-block elements? A The solubility of…

A: Ans  A The solubility of the sulfates of group II decreases down the group because the larger anion…

Q: . Which of the following is paramagnetic? Z of Zn = 30, Xe = 54, , Fe =26, S = 16

A: Paramagnetic substance are those substance which contain unpaired electron in their orbitals.…

Q: What are the similarities and differences between the lanthanides and the main groups?

A: Groups 1, 2 and 13 to 18 constitute the main group. In both, Lanthanide's and main group , the ionic…

Q: Predict the number of valence electrons and energy levels for Strontium and Selenium. a Explain how…

A: valence electron is an outer shell electron that is associated with an atom, and that can…

Q: 16. In the periodic table, the element hydrogen is sometimes grouped with the alkali metals and…

A:

Q: an unknown element, X, reacts with oxygen to form two oxides with the general formula X2O3 and X2O5.…

A: The oxidation states of the oxides X2O3 and X2O5 can be calculated as

Q: Which of the following is not the similar properties shared by the diagonal effect pair of beryllium…

A: Diagonal relationship between Be and Al: Both have tendency to form covalent compounds.e.g…

Q: Which of the elements below exhibit the "inert-pair effect"? · A sulphur B lead C sodium D magnesium

A: Some p-block elements, such as thullium(Tl),polonium(Po), tin ( Sn ), lead (Pb), bismuth ( Bi ) etc…

Q: Arrange the given elements from largest to smallest atomic radius (that is, their physical size). Of…

A:

Q: Write a balanced equation for the reaction that occurs ineach of the following cases: (a) Cesium is…

A: Balanced equation is that when atoms on both reactants and products side are equal. A chemical…

Q: Select from A to D the element 22 Which form a neutral oxide and an acid side Inllallalfv 23 Which…

A: Applying basic concepts of acid and base.

Q: 34 29 29 2) Give the electron configuration for the following elements, both the full configuration…

A: ElementFull electron configurationNoble-gas configurationNa (Sodium)1s2 2s2 2p6 3s1[Ne] 3s1Al…

Q: Given the following information, identify the group from the periodic table that contains elements…

A: There are many trends in inorganic chemistry. These trends are atomic size, reactivity, metallic…

Q: Which of the following describes the element I? Choose all that apply. is very reactive as a…

A: I is very reactive non-metal (i is belong to group 17 . in group 17 all metal are non metal) I…

Q: A group of students at College of the Canyons conducted an experiment. Two reactors contained…

A: Since inert gases are the most stable state then they are unreactive.

Q: Which of the following is not true? O a. The transition metals are characterized by partially filled…

A:

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.