Question

pls help me out pls guys pls​

Answer 1

Answer:

A) 13

if the atomic mass is 27 so atomic mass =electron + proton

Answer 2

Answer:

10

Explanation:

Number of neutrons is 14

Mass number is 27

So number of protons wil be

=27-14

=13

This is because protons and neutrons together contribute to mass number.

Now, number of protons=number of electrons

So, number of electrons will be

=13

But it is given that the element is an ion which has 3 positive charge, i.e 3 electrons must be removed from the element to get a 3 positive charge

So final number of electrons will be

=13-3

=10