Chemistry
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Assessment
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Chemistry
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8th Grade
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15 questions
Show answers
1.
Multiple Choice
30 sec
1 pt
The group number tells us how many _________ there are in an element.
groups
valence electrons
energy levels
chemicals
2.
Multiple Choice
30 sec
1 pt
The ________________ tells you how many energy levels are used in an element.
group number
atom
protons
period number
3.
Multiple Choice
30 sec
1 pt
The element Tellurium has the atomic mass of 127.60 and its atomic number is 52. How many neutrons are in the element Tellurium?
179.60
127.60
52
76
4.
Multiple Choice
30 sec
1 pt
The inner energy level can only hold ______ electrons.
1
0
2
18
5.
Multiple Choice
30 sec
1 pt
The largest amount of electrons the 3rd energy level can hold is?
18
unlimited amount
2
8
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