Question

The electronic configurations of three elements X, Y and Z are X - 2, 8; Y - 2, 8, 7 and Z - 2, 8, 2. Which of the following is correct?

Options

• X is a metal

• Y is a metal

• Z is a non-metal

• Y is a non-metal and Z is a metal

Answer 1

Z is a non-metal

Explanation:

According to the electronic configuration, Y is Chlorine and Z is Magnesium.