Asked by jake
What is the total number of protons, neutrons, and electrons in a mercury, Hg, atom that has a mass number of 201?
Answers
Answered by
DrBob222
Look on the periodic table. The atomic number is the number of protons.
The number of electrons is the same as the number of protons.
The number of neutrons is calculated this way.
number of protons + number of neutrons = mass number which in this case is 201.
Total number = #protons + #neutrons + #electrons
The number of electrons is the same as the number of protons.
The number of neutrons is calculated this way.
number of protons + number of neutrons = mass number which in this case is 201.
Total number = #protons + #neutrons + #electrons
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