Question

the mass number and atomic number of an element x is 33 and 15 respectively.

what is the difference between the number of protons and neutrons of the element?
a). 3
b). 8
c). 12
d). 18​

Answer 1

Answer:

Z

A

X, where A stands for the atomic mass number which is the sum of protons and neutrons in the atom of an element and Z stands for an atomic number of the element which is the number of electrons in an atom of an element.

Atomic mass = Number of electrons + Number of neutrons

Atomic number = Number of protons = Number of electrons

Therefore, atomic mass =15+16=31 and atomic number is =15.

Explanation:

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Answer 2

Answer:

Explanation:

3