Question

An element with a charge of -5, has 10 protons, ad 11 neutrons. The number of electrons is in this atom is . (think of your formulas, and which one) Blank 1:

Answer 1

The number of electrons in

37

Cl

−

ion with a charge of −1 is 18.

The atomic number of chlorine is 17. Thus neutral atom of chlorine contains 17 electrons. It gains one electron to form mono-negative ion with charge of -1.

Total number of electrons in this ion is 17+1=18

Answer 2

Answer:

the no.of electrons is equal to the no. of protons in a neutral atom..

therefore the no. of electrons is 10...

charge is -5

therefore the total no. of electrons is 10-(-5)

=10+5

=15