Question

9) Two elements A and B have atomic number 16 and 19 respectively.
(a) Write down the electronic configurations of A and B in terms of s, p, d, f.
(b) Which element is a powerful reducing agent?​

Answer 1

Question

Two elements A and B have atomic number 16 and 19 respectively.

(a) Write down the electronic configurations of A and B in terms of s, p, d, f.

(b) Which element is a powerful reducing agent?​

Answer

Magnesium Oxide. A compound is a material in which atoms of different elements are bonded to one another. Oxygen and magnesium combine in a chemical reaction to form this compound. After it burns, it forms a white powder of the magnesium oxide. Magnesium gives up two electrons to oxygen atoms to form this powdery product. This is an exothermic reaction as well as combination reaction.

2Mg(s)+O

2

(g)→2MgO(s)+energy