Question

1. (a) Consider the following table .

which of the element :
a) is a halogen?
b) is most likely to be attracted by a magnet?
c) belongs to group I
d) would readily form an ion with a double negative charge?
e) what type of bond would exist between J and X when they combine?
f) how many neutrons are there in Q?
g) write the formula of the compound formed when R combines with X
h) state the element which exist as a diatomic molecule
I) select the element which belongs to the d- block of the periodic table
J) write the electronic configuration of the element Y​

Answer 1

Required Answer :

1. (a) Consider the following table .

which of the element :

a) is a halogen?

Ans. Element J is halogen.

b) is most likely to be attracted by a magnet?

Ans. Element Y is most likely to be attracted by a magnet.

c) belongs to group I.

Ans. Element X belongs to group 1.

d) would readily form an ion with a double negative charge?

Ans. Element R would readily form an ion with a double negative charge.

e) what type of bond would exist between J and X when they combine?

Ans. Ionic bond would exist between J and X when they combine.

f) how many neutrons are there in Q?

Ans. Atomic number of Q = 13

Mass Number = 27.

Number of neutrons = Mass Number - Atomic number

Number of neutrons = 27 - 13.

Hence, There are 14 neutrons in Element Q.

g) write the formula of the compound formed when R combines with X.

Ans. When R combines with X it forms X₂R.

h) state the element which exist as a diatomic molecule

Ans. Element J exist as a diatomic molecule.

I) select the element which belongs to the d- block of the periodic table

Ans. Element Y belongs to the d- block of the periodic table.

J) write the electronic configuration of the element Y

Ans. Electronic configuration of the element Y is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹ 3d⁵ or [Ar] 4s¹ 3d⁵.