Question

The sodium atom contains 11 electrons, 11 protons, and 12 neutrons. What is the mass number of sodium?

Answer 1

23 (Mass no. = No. of neutrons + No. of protons)

Answer 2

Hi mate.

thankx for asking this question.

here is your answer,


we know that,

mass no. = no. of neutron + no.of protons

= 12 + 11

= 23




thank you.



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