Periodic Table Practice: Question Preview (ID: 11179)

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What is the atomic number of magnesium?
a) 12 b) 24.5 c) 24 d) 6
How many electrons does fluorine have?
a) 19.0 b) 9 c) 18 d) 4.5
How many neutrons does carbon-50 have?
a) 44 b) 6 c) 12 d) 12.0
What is the mass number of sulfur?
a) 8 b) 32.1 c) 16 d) 32
What is the mass number of aluminum-100?
a) 100 b) 13 c) 27.0 d) 26
How many protons does krypton have?
a) 83.8 b) 72 c) 36 d) 18
How many neutrons does calcium have?
a) 20 b) 40.1 c) 40 d) 10
What is the atomic mass of nickel?
a) 58.7 b) 29 c) 58 d) 25
How many protons does arsenic-100 have?
a) 33 b) 66 c) 100 d) 67
How many electrons does iron have?
a) 55.8 b) 13 c) 52 d) 26
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