Question

The description of atomic particles of two elements X and Y is given below X-protons=8,neutrons=8,electrons=8 Y-protons=8,neutrons=9,electrons=8 1)what is the atomic number of X? 2)what is the mass number of Y? 3)what is the relation between X and Y? 4)write the electronic configuration of x? 5. write the ion formed by element y.

Answer 1

Atomic no of x is 8
Mass no of y is 17
They are isotropes
1s2 2s2 2p4
O2-

Answer 2

1)- atomic no. of X is 8.
2)- mass no of Y is 17.
3)-they are isotops.
4)- X- 2,6
5)- negative ion...
I hope it helps u..