For the following neutral atoms, give the number of protons, neutrons, and electrons: 204 80Hg 129...
For the following neutral atoms, give the number of protons, neutrons, and electrons:
204 80Hg
129 53I
7935Br
137 55Cs
192 78Pt
Homework Answers
Number of electrons=atomic number in a neutral atom
Number of protons=atomic number
Number of neutrons=mass number-atomic number
204Hg 80
Electrons=80
Protons=80
Neutrons=204-80=124
129I53
Protons=53
Electrons=53
Neutrons=129-53=76
79Br 35
Electrons=35
Protons=35
Neutrons=79-35=44
137Cs55
Electrons=55
Protons=55
Neutrons=137-55=82
192pt78
Electrons=78
Protons=78
Neutrons=192-78=114
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