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- 1. Multiple Choice
How many protons does Calcium have?
55
27
20
40
- 2. Multiple Choice
The atomic mass of an atom consists of ___________+ ____________
Protons + Neutrons
Protons + Electrons
Electrons + Neutrons
Quarks + Gluons
- 3. Multiple Choice
Magnesium has a mass of 24.305, how many protons does Mg have?
24
31
25
12
- 4. Multiple Choice
If Fluorine is not an ion, how many electrons does it have?
8
18
10
9
- 5. Multiple Choice
Strontium is in the same period as __________
Silver
Zinc
Calcium
Scandium
- 6. Multiple Choice
Ni is the symbol for which element?
Sodium
Neon
Nickel
Nitrogen
- 7. Multiple Choice
B is in which period?
Period #2
Period #13
Period #1
Period #8
- 8. Multiple Choice
The proper way to write the elemental symbol for Arsenic is.....
Al
as
As
AS
- 9. Multiple Choice
Barium has _____ protons.
35
8
4
56
- 10. Multiple Choice
An element that has the same number of protons and electrons has ____
No charge
A positive charge
A negative charge
No such situation exists.
- 11. Fill in the Blank
Certain atoms can vary in the number of protons that they have. For example, Calcium has a variety that has 22 protons.
- 12. Fill in the Blank
The number of protons that an element has is always the same, the number of neutrons may vary.
- 13. Fill in the Blank
Chemists have to be careful with the Noble Gases since some of them have the same atomic number, they can be difficult to tell them apart.
- 14. Multiple Choice
How many protons does Chlorine have?
35
17
35.453
0
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