An atom of Fe contains how many electrons?
A) 25
B) 26
C) 55
D) 56
Correct Answer:
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Q28: What does the symbol e- represent?
A)Proton
B)Neutron
C)Element
D)Electron
Q29: Boron has how many protons?
A)2
B)3
C)4
D)5
Q30: Atoms of Ca contain how many protons?
A)19
B)40
C)20
D)41
Q31: Uranium metal, made only of uranium atoms,
Q32: The isotope of cobalt with the
Q34: How many electrons are in atoms of
Q35: Atoms of U all contain how many
Q36: Neutral atoms of potassium all have how
Q37: How many neutrons does uranium-235 contain?
A)92
B)140
C)143
D)235
Q38: The element Fe, as an isotope iron-56,
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