Question

Name the scientists who invited Neutron ,write the no.of neutrons present in potassium of atomic mass 40 and atomic no. 19​

Answer 1

Answer:

J. Chadwick's invented Neutron.

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Answer 2

Answer:

James Chadwick had invented the neutron. No. of neutrons = 21.

Explanation:

No. of protons = Atomic no. = 19

Atomic mass = no. of protons + no. of neutrons. Therefore, no. of neutrons = atomic mass - no. of protons = 40 - 19 = 21.

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