Physics, asked by hinahoneyhh, 8 months ago

Example 1: Three different elements have mass number
equal to 45. Their atomic numbers are 20, 21 and 22
respectively. Calculate the number of protons and neutrons for
three elements.
(UP 1994)

Answers

Answered by realsaksham20

0

Explanation:

(1) proton=20

Neutron=45-20=25

(2)proton=21

Neutron=45-21=24

(3)proton=22

Neutron=45-22=23

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