Chemistry

CHM 094 Practice #3 Name: ______________________

1. How many electrons can be accommodated in each of the following?

a) f subshell

b) n = 2 shell

c) n = 3 shell

d) 4s orbital

e) 2p orbitals

2. Write out complete electron configurations using i) superscript with each orbital and ii) noble gas

notation for the following elements listed below.

a) Ba

b) Bi

c) Ni

d) Hg

3. How many i) valence electrons and ii) unpaired electrons are contained in each of the following

atoms?

a) hydrogen atom, H

b) helium atom, He

c) nitrogen atom, N

d) carbon atom, C

4. For each of the elements from question #3, write out the valence electron configuration using a

superscript with each orbital