If an atom has 17 electrons and its mass number is 35 calculate the following

Asked by maham237 @ 26/12/2020 in Chemistry viewed by 360 People

if an atom has 17 electrons and its mass number is 35, calculate the following: - number of protons - number of neutrons -atomic number

Answered by maham237 @ 26/12/2020

Electrons, Protons and the Atomic Number is the exact same. So
Protons - 17
Atomic Number - 17

and the neutrons come by subtracting the protons from the Atomic Mass, which in this case 35.
35-17 = 18
Neutrons = 18

Protons = 17
Atomic Number = 17
Neutrons = 18

The mass number of an atom can be calculated from

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Asked by maham237 @ 27/11/2020 in Chemistry viewed by 354 persons

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