Question

If Z=11 and A=23, what would be the
number of neutrons in the element?
Also name the element.​

Answer 1

Explanation:

here Z is sodium

no. of neutrons=12

because atomic mass=23 sodium

also atomic mass=no.of neutrons+no.of protons

23=11+neutrons

protons=12

Answer 2

The  number of neutrons in the element is 12 and the name the element. is sodium

Explanation:

Mass number (A) is defined as the sum of number of protons and neutrons that are present in an atom.

Mass number = Number of protons + Number of neutrons

Atomic number (Z) is defined as the number of protons or number of electrons that are present in an atom.

Atomic number = Number of electrons = Number of protons = 11

Mass number = Number of protons + Number of neutrons = 23

Number of neutrons  = 23 - 11 = 12

Thus the  number of neutrons in the element is 12 and the element is sodium

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