Which of the following is known as wonder element?

Important Questions on Periodic Classification of Elements

EASY

NDA & NA EE

IMPORTANT

Pathfinder NDA / NA National Defence Academy and Naval Academy Entrance Examination Chemistry>Chapter 6 - Periodic Classification of Elements>Practice Exercise>Q 12

Element $\mathrm{A}$ belongs to group $\mathrm{VII} \mathrm{A}$ in $\mathrm{p}$-block and element $\mathrm{B}$ belongs to group $\mathrm{I} \mathrm{A}$ in $\mathrm{s}$-block of the periodic table. Out of the following assumptions, the correct one is:

EASY

NDA & NA EE

IMPORTANT

Pathfinder NDA / NA National Defence Academy and Naval Academy Entrance Examination Chemistry>Chapter 6 - Periodic Classification of Elements>Practice Exercise>Q 13

All alkaline earth metal are

EASY

NDA & NA EE

IMPORTANT

Pathfinder NDA / NA National Defence Academy and Naval Academy Entrance Examination Chemistry>Chapter 6 - Periodic Classification of Elements>Practice Exercise>Q 14

Which of the following belongs to a representative group of elements of the periodic table?

EASY

NDA & NA EE

IMPORTANT

Pathfinder NDA / NA National Defence Academy and Naval Academy Entrance Examination Chemistry>Chapter 6 - Periodic Classification of Elements>Practice Exercise>Q 15

The common semiconductor material is:

EASY

NDA & NA EE

IMPORTANT

Pathfinder NDA / NA National Defence Academy and Naval Academy Entrance Examination Chemistry>Chapter 6 - Periodic Classification of Elements>Practice Exercise>Q 16

Which of the following sets of elements belong to the same period?

EASY

NDA & NA EE

IMPORTANT

Pathfinder NDA / NA National Defence Academy and Naval Academy Entrance Examination Chemistry>Chapter 6 - Periodic Classification of Elements>Practice Exercise>Q 17

Which of the following is the most abundant transition element?

MEDIUM

NDA & NA EE

IMPORTANT

Pathfinder NDA / NA National Defence Academy and Naval Academy Entrance Examination Chemistry>Chapter 6 - Periodic Classification of Elements>Practice Exercise>Q 18

Which of the following is most electronegative?

MEDIUM

NDA & NA EE

IMPORTANT

Pathfinder NDA / NA National Defence Academy and Naval Academy Entrance Examination Chemistry>Chapter 6 - Periodic Classification of Elements>Practice Exercise>Q 19

Which has the least ionisation potential?