Uranium metal, made only of uranium atoms, has how many protons in each atom?
A) 90
B) 238
C) 235
D) 92
Correct Answer:
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Q26: A compound is made up of two
Q27: Rutherford's gold foil experiment proved what about
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
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