Choose the answer which gives the correct number of valence electrons for the indicated atom. a) Si has 14 valence electrons. b) O has 6 valence electrons. c) H has 8 valence electrons. d) N has 7 valence electrons. e) Ga has 13 valence electrons.

Q: Group II A (Group 2) metals form ions by a. gaining 2 electrons  b. gaining 6 electrons  c.…

A: Alkaline earth metals are placed in group 2 in modern periodic table.These metals has two electrons…

Q: A compound contains an unknown ion X and has the formula XCl2. Ion X contains 24 electrons. What is…

A: A neutral atom contains equal number of protons and neutrons.

Q: Use the element colors in Figure 2.3 (also shown on the inside back cover) and the information in…

A: In the ball-and-stick model, each atom is represented by the ball and each chemical bond is…

Q: Predict the formula of a compound between rubidium and bromide? Use the periodic table to determine…

A: Ionic compounds are neutral compounds made up of positively charged ions called cations and…

Q: Determine if the compounds contain a Chlorine, Bromine or Fluorine atom.

A: The mass spectra is an important analytical tool that is employed to determine the molar mass of an…

Q: Explain why Aluminum loses electrons when forming ionic compounds, while Oxygen gains electrons.

A:

Q: Determine the number of each type of atom in formula. Fe(NO2)2

A: The number of atoms can simply be determined by counting the individual atom.

Q: How many electrons are in hydrogen

A: Given element,       Hydrogen (H)

Q: 1. An instructor gave you direction to construct a model of CH3CH2Br molecule by following the…

A: Note: According to the rules we can answer only first question at a time. Pls repost others.  Given:…

Q: In the Phosphorus element, what are the number of electrons lost or gained by atoms during ionic…

A: ANSWER IS :

Q: How does sodium atom become sodium ion?

A: How does sodium atom become sodium ion ?

Q: what is the formula of the ionic compound expected to form between the elements barium and oxygen

A: An ionic compound is formed between a metal and a non-metal.Here Barium is the metal and oxygen is…

Q: Which ion has the same number of total electrons as the noble gas argon (Ar)?

A:

Q: 1) lon Commonly Number of Formed Name of element SYMBOL Number of electrons in ion protons in ion…

A:

Q: Why was argon used in light bulbs?  Need periodic table for this answer.

A: Argon is noble gases found in the group (18) do not react with any metal; it means it creates an…

Q: Explain why a complete atom is electrically neutral.

A: The atom is made up of electrons, protons and neutrons. The charge on electron is negative where as…

Q: Predict the formula of a compound between aluminum and fluorine? Use the periodic table to determine…

A: Chemical reactions occur when there is any chemical change. They are written in the form of chemical…

Q: Determine the number of protons and the number of electrons in ion. Sr2+

A: To determine the number of electrons in Sr2+ ion

Q: Predict the formula of a compound between strontium and nitrogen? Use the periodic table to…

A: Ionic compounds are compound that formed after the donating electrons from one atom/group to another…

Q: What determines the formula of an ionic compound?

A: An ionic compound is made of a group of atoms. An ionic compound is said to be stable when electrons…

Q: Element Number of Valence Electrons Lewis Dot Symbol 1 4. lodine 5. Carbon 6. Barium 7. Selenium 8.…

A: The symbols of the elements are as follows: Iodine – I Carbon- C Barium – Ba Selenium -Se Silicon-Si…

Q: Valence electrons

A:

Q: Answer the following Questions: 1) How do you determine the charge for the transition metals when…

A: Transition metals are elements form group 3-12 in the periodic table. The most significant feature…

Q: What happens to the structure of an atom to change it into an ion? Thanmos

A: In the given question we have to find that when an ion is formed from an atom, what will be changes…

Q: The diagram below depicts a lithium atom with three protons and four electrons. Explain what must…

A: A neutral atom is one which contains equal number of electrons and protons. Here we have a lithium…

Q: For this lonic Compound J3Q2 answer the following questions: HINT: You need to REVERSE the…

A: Ionic compounds are formed when positively charged ions combined with negatively charged ions…

Q: X has two valence electrons & Z has seven valence electron

A: A question based on the combination of elements, which is to be accomplished.

Q: How do you know if the polyatomic ion has more electrons than protons

A: Since covalent bonds are formed by the sharing of electrons.

Q: How many electrons are in a +3 cation with an atomic number of 13?

A: Atomic number is the number of protons in an atom. It is equal to the number of electrons in the…

Q: Is chlorine dioxide a molecular or ionic compound? Why?

A: First we should know about molecular and ionic compound.  molecular compound are those compound…

Q: Find potassium (K) in the periodic table and predict how many valence electrons it has?

A: Periodic table represents the systematic arrangement of elements in which the properties of these…

Q: Predict the formula of a compound between boron and tellurium? Use the periodic table to determine…

A: Periodic table represents the systematic arrangement of elements in the tabular form. It consists of…

Q: Species Protons Electrons Neutrons Charge

A: The mass of an element is the sum of the number of protons and neutrons and if the element has no…

Q: What are the names of electrons are produced from second ionization? For example, first ionization…

A: Ionization energy is the amount of energy required to remove the most loosely bound electron from a…

Q: Question 2 Is hydrogen a metal or a nonmetal? How many valence electrons does a hydrogen atom have?…

A: Dear student, Since your have asked multiple questions we will solve the first question for you. If…

Q: What is the total number of electrons in the correct Lewis dot formula of the sulfite ion (SO, )?…

A: Lewis dot structure is a structure of the molecule which represents the valence electrons of each…

Q: How many electrons are there in bromide ion (Br-1)?

A:

Q: Predict the formula of a compound between silver and arsenic? Use the periodic table to determine…

A: Arsenic is an element with 5 valence electrons. While silver is an element with 1 valence electron…

Q: What is the symbol for an ion formed when a tin atom lose 2 electrons

A:

Q: lon Commonly Formed Name of element SYMBOL Number of Number of electrons in ion protons in ion…

A: Periodic table consists of elements which are arranged in different blocks according to the…

Q: What is the chemical formula for the compound formed between potassium and fluorine? formula: What…

A:

Q: * Determine and write the formula for each of the following binary ionic compounmds. Remember to…

A: Since you have posted a question with multiple sub-parts, we will solve the first three unsolved…

Q: Predict the formula of a compound between potassium and oxygen? Use the periodic table to determine…

A: To find the formula of an ionic compound, first identify the cation and write down its symbol and…

Q: G Gizmos lonic Bonds Select a metal Lithium (LI) Select nonmetal Fluorine (F) Show formula Show…

A: A question based chemical bonding, which is to be accomplished.

Q: 1. After Na loses an electron and Cl gains an electron what would be the TOTAL charge of the…

A: Na is a metal and have tendency to lose an electron to get stable state. Cl being a non metal…

Q: What is the difference between covalent bonds and ionic bonds?

A: The difference between covalent bonds and ionic bonds are given.

Q: Aluminum (Al) reacts with chlorine (Cl,) gas to form aluminum chloride. Given the position of…

A:

Q: When making an cation, when you (take away / add) an electron you make a positive ion. This means…

A: Anion is negatively charged species which have more electrons than neutral atom. Cation is a…

Q: When potassium fluoride forms from a potassium atom and a fluorine atom O an electron is transferred…

A: Potassium fluoride is a ionic compound.

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.