Question

1.
An element A with atomic no 11 combines with an element B with atomic no 17 to form a compound
"AB".
AB reacts with silver nitrate solution to form a white solid

Answer 1

Answer:

Non-metals are

electronegative elements because they can form negative ions by ... 12 combines with an element Y of atomic number 17 to form a compound XY2.

Explanation:

Mole Concept And ... (b) The number of atoms in a molecule of an element is called its atomicity.