Answer:
it has 18 electrons
Explanation:
You have an atom with 17 protons, 18 neutrons, a net charge of -1, and a mass of 35. How many electrons does this atom have?
atomic mass is protons + neutrons
17+18= 35 which is given
8rge of +17
neutrons are NEUTRAL and have no charge
if the species has a charge of -1, it has one more negative electron than protons
so the species has an atomic number of 17, atomic mass of 35, and a charge of -1
it has 18 electrons for -18, 17 protons for +17
-18 +17 = -1
element 17 with a -1 charge is the Cl anion