Question

Mass number of an element is 37
and number of proton is 17 the
element has
17 neutrons and atomic number17
17 neutrons and atomic numbe20
20 neutrons and atomic number17
None of the above​

Answer 1

Answer:

20 neutrons and atomoc mumber 17

Answer 2

Answer:

20

Explanation:

20

Given - Atomic number of element = 17

Mass number of element = 37

Number of electrons = 17

As we know, number of protons is equal to number of electrons.

so, number of protons = 17

now, Mass number = number of protons + number of neutrons

37 = 17 + number of neutrons

number of neutrons = 37 - 17

number of neutrons = 20

So, the number of neutrons in the nucleus = 20.