Honors Chemistry Assignment Sheet With Answer Key - Unit 3 Page 3
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2
3
4
5Honors Chemistry
a. How many electrons are in each atom?
8
b. What is the atomic number of this element?
8
c. Write the orbital notation for oxygen’s electron configuration.
d. How many unpaired electrons does oxygen have?
2
e. What is the highest occupied energy level?
Second main energy level (n=2)
f.
How many inner-shell electrons does this atom contain?
2
g. In which orbital(s) are these inner-shell electrons located?
The 1s orbital
2
2
6
2
3
43.
Given that the electron configuration for phosphorus is 1s
2s
2p
3s
3p
, answer the following questions:
a. How many electrons are in each atom?
15
b. What is the atomic number of this element?
15
c. Write its orbital notation.
d. How many unpaired electrons does phosphorus have?
3
e. What is the highest occupied energy level?
The third main energy level (n=3)
f. how many inner-shell electrons does the atom contain?
10
g. In which orbital(s) are these inner-shell electrons located?
The 1s, 2s, and 2p orbitals.
Honors Assign #2-Periodic Trends
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