Question

the atomic number sodium is 11 and mass number is 23 how many protons electrons and neutrons it contains​

Answer 1

Answer:

Hope it helps you to understand it easily................. .

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Explanation:

No of neutrons = Atomic mass - Atomic number

No of neutrons in sodium =23-11

=12 neutrons

Mass number = Number of protons + Numbers of neutrons

or,23 = Number of protons+12

or,Number of protons - 12 = 23

or,Number of protons=23-12

or,Number of protons= 11 protons

No of electrons = Atomic number

Hence,No of electrons in sodium atom = 11 electrons.