Question

atomic number of an atom Z=17,mass numberA=35
find the number of protons,electrons and neutrons in the atom?​

Answer 1

Answer:

Explanation:

Atomic number of an atom Z = 17,mass number A=35 (Given)

Thus, the element is Chlorine

Atomic number of chlorine = 17

Mass number of chlorine = 35.5

Atomic number = number of protons = number of electrons = 17

Mass number = sum of number of protons = number of neutrons = 35.5

Number of neutrons = Mass number - Atomic number

= 35 - 17

= 18

Chlorine has electronic configuration of  2, 8, 7.

Thus, by accepting one electron it forms the chloride ions. Hence, the number of electrons will be 18 and the number of protons and neutrons will remain the same as for chlorine.