Question

Identify the elements 'X' and 'Y' from the following information.
a) 'X' has 17 protons and 18 neutrons
| b) 'Y' has 17 protons and 20 neutrons.​

Answer 1

a) X - chlorine 35

b) Y - chlorine 37

These are isotopes of chlorine.

Answer 2

Answer:

identify elements x and y