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Chemical Bonds
Test Description: Students will identify the formulas of ionic compounds and how many unpaired electrons a nonmetal has
Instructions: Answer all questions to get your test result.
1) What is the formula of a compound made of Na and Cl?
A
NaCl3
B
NaCl2
C
Na2Cl
D
NaCl
2) What is the formula of a compound made of Be and F
A
Be3F2
B
BeF
C
BeF2
D
Be2F
3) What is the formula of a compound made of K and S?
A
KS2
B
K3S2
C
KS
D
K2S
4) What is the formula of a compound made of Al and O?
A
AlO2
B
Al2O3
C
Al2O
D
Al3O2
5) How many unpaired electrons (Lonely Boyz) does Nitrogen have?
A
4
B
3
C
2
D
1
6) How many unpaired electrons (Lonely Boyz) does Carbon have?
A
1
B
4
C
2
D
3
7) What is the formula of a compound made of Sr and P?
A
Sr3P2
B
Sr2P3
C
Sr2P
D
SrP
8) How many unpaired electrons (Lonely Boyz) does Bromine have?
A
2
B
3
C
4
D
1
9) What is the formula of a compound made of Ga and P?
A
GaP
B
GaP2
C
GaP3
D
Ga2P
10) What is the formula of a compound made of Cs and S?
A
Cs2S
B
CsS3
C
CsS
D
CsS2
*select an answer for all questions
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