Question

An element $$_{13}\mathrm{X}$$ combines with $$_{17}\mathrm{Y}$$ to form a compound. Which of the following is true?

P X is a metal, Y is a metal.

Q X is a metal, Y is a non metal.

R X looses electron(s), Y gains electron(s).

विकल्प

• Only P.

• Only Q.

• Both P and Q.

• Both Q and R.

Answer 1

Both Q and R.

Explanation:

Atomic number 13 is aluminium, a metal, while atomic number 17 is chlorine, a non-metal; therefore Q is true. Aluminium loses electrons and chlorine gains them, so R is also true, whereas P is false.