Question

The electronic configurations of X and Y are 1s2 2s2 2p6 3s2 and 1s2 2s2 2p4 respectively.Then:
(a) Which atom can form an anion?Why? (b)Which atom can form the cation?Why?
(c)The X,Y elements belong to which blocks of periodic table?
(d)Write the formula of the compound formed due to chemical bond between X and Y atoms.

Answer 1

Answer:

a) Y

b)X

c)X---> s block

  Y---> p block

d) MgO

Explanation:

a)Y represents the configuration of O . it is a electronegative element and hence it forms anion

b)X represents the configuration of Mg . it is a electropositive element and hence it forms cation

Answer 2

Explanation:

a) If you see, element Y i.e Oxygen takes 2 electrons in it's p sub-orbital to complete it's p shell i.e indirectly it's octet, thus it forms an Anion by acquiring a negative charge.

B) Element X (Mg) i.e magnesium can form a cation because it has a tendency to lose its electron which we call as electropositivity of an Atom . Mg loses 2 electron from 3s subshell to form a Cation.

C) Element X , i.e Mg belongs to s-block

Element Y , i.e O belongs to p-block.

D) The compound formed by chemical bonding between X and Y i.e between Mg and O is Magnesium Oxide (MgO)

2Mg(s) + O2(g) ==> 2MgO (s)

That's you answer , please see the attachment too !!!

IF you think I was right surely mark it as BRAINLIEST ANSWER