An atom with 17 protons, 17 electrons and 18 neutron has a mass number of what?

VTPETERS2002

6 years ago

Mass number = proton + neutron
= 17 + 18 = 35

JICKY

6 years ago

Mass number = proton number+neutron number=17+18=35

Chistarfashion

6 years ago

The answer is 17 because when u add ur protons plus the neutrons I. e 17+18=35
Chlorine has 35 as is relative mass number then according to the periodic table 35Cl also have 17 as is atomic number.

Jerrycurl12

6 years ago

Atomic number (z) =proton=electron

Mass number (A)= proton + neutron

= 17 + 18 = 35

iykezy

6 years ago

mass number = neutron + proton
= 18 + 17
= 35

di.onochie

6 years ago

Mass number= proton + neutron
Mass number= 17 + 18
Mass number= 35