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8th grade "quiz" 4.14.2020
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What does the term "valence electron" mean?
1 point
The total number of electrons in an atom
The total number of electrons minus the number of neutrons in an atom
The number of electrons orbiting on the outermost level (or shell) of an atom
None of the above
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Which atom is MORE electronegative: magnesium or radium?
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1 point
Magnesium
Radium
Which atom is MORE electronegative: chlorine or sulfur?
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1 point
Chlorine
Sulfur
How many valence electrons does Beryllium have?
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1 point
1
2
3
4
5
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7
8
How many valence electrons does Nitrogen have?
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1 point
1
2
3
4
5
6
7
8
How many valence electrons does Potassium have?
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1 point
1
2
3
4
5
6
7
8
Which of the following elements is chemically stable?
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1 point
Xenon
Magnesium
Nitrogen
Carbon
How many valence electrons does Zinc have?
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1 point
1
2
3
4
5
6
7
8
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