2. Atoms and the Periodic Table

How many valence electrons does the carbon atom possess?

How many inner core and valence electrons does the nitrogen atom possess?

What is the group number and number of valence electrons for each of the following elements?

e. barium

Complete each of the statements a to d using 1, 2, or 3:

1. decreases

2. increases

3. remains the same

Going down Group 6A (16),

d. the number of valence electrons _________

Complete each of the statements a to d using 1, 2, or 3:

1. decreases

2. increases

3. remains the same

Going from left to right across Period 4,

d. the number of valence electrons ________