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- 1. Multiple Choice
What are valence electrons?
The total number of electrons in an atom
The number of electrons in the outermost shell
The number of electrons in the second shell
The number of protons in the outermost shell
- 2. Multiple Choice
How many valence electrons does Phosphorus have?
31
5
15
4
1
- 3. Multiple Choice
How many valence electrons are in an atom of Ar?
2
8
4
1
- 4. Multiple Choice
How many valence electrons are found in atoms of group 1?
7
6
4
1
- 5. Multiple Choice
When an atom loses a valence electron, it becomes a(n) _____________ ion.
positive
negative
cation
polyatomic
anion
- 6. Multiple Choice
What is the charge of an atom that has gained one electron?
-1
-2
+1
+2
- 7. Multiple Choice
If an atom has 3 valence electrons, what charge will it have as an ion?
+3
-3
+5
-5
0 neutral
- 8. Multiple Choice
What charge will a Beryllium ion have?
1+
2+
2-
1-
- 9. Multiple Choice
What charge will a sulfide ion have?
3+
2+
2-
3-
- 10. Multiple Choice
What noble gas does Bromine want to be like?
He
Ar
Kr
Xe
- 11. Multiple Choice
What kind of bond forms between these two elements?
NaAl
Ionic
Covalent
Metallic
No bond
Covalent-organic
- 12. Multiple Choice
What kind of bond forms between these two elements?
MgCl2
Ionic
Covalent
Metallic
no bond
covalent-organic
- 13. Multiple Choice
What kind of bond forms between these two elements?
SO4
Covalent
Ionic
Metallic
no bond
covalent-organic
- 14. Multiple Choice
The octet rule means that all atoms want to have ___ valence electrons
1
9
8
16
- 15. Multiple Choice
Which of the pairs below would make no bond?
C-H
H-C
Ne-Mg
P-Ar
C-He
- 16. Multiple Choice
Which of the pairs below would make a covalent-organic?
C-H
H-C
C-H-O
C-O
C-Mg
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