Homework Questionsabout chemistry through

valence electrons

Like the room questions but different elements

Q1

• In terms of electrons, what do the atoms of the following elements have in common?

Gallium (Ga)

Boron (B)

Indium (In)

Q2

• Draw a modified Bohr Diagram for an atom of Aluminum (Al). Identify the core and valence electrons.

Q3

A> How many electrons does a neutral atom of Bromine (Br) have?

B> How many core electrons does a neutral atom of Bromine have?

Explain how you got you answers.

Q4

• Why are the properties of Sulfur (s)and Polonium (Po) similar?

Q5

• What are the valence electrons for the following elements’ atoms?

• Francium (Fr)

• Oxygen (O)

• Bismuth (Bi)

• Argon (Ar)

• Lead (Pb)

Q6

• What are the number of valence and core electrons in an atom of Tellurium (Te)?

Q7

• What family or group are the following elements in?

• Iodine• Magnesium (Mg)• Fermium (Fm)• Iron (Fe)• Potassium (K)

Q8

In a neutral atom of Technetium (Tc), how many electrons

protons

neutrons

Does it have?

Explain how you determine these answers.

Q9

• Tin (Sn) has the following isotope:

Sn-127

• What does the 127 indicate about the atom?

• Determine the number of electrons, protons and neutrons the isotope has.

Q10

• Determine the most common isotope of Chlorine (Cl)

• Determine the number of valence and core electrons, protons and neutrons of 1 atom of that isotope.