Group $1$ elements are called alkali metals.

Important Questions on Periodic Classification of Elements

MEDIUM

10th CBSE

IMPORTANT

Eduwiser's CBSE Chemistry For Class X>Chapter 5 - Periodic Classification of Elements>Exercise 7>Q 28

Group 16 elements are called chalcogens.

EASY

10th CBSE

IMPORTANT

Eduwiser's CBSE Chemistry For Class X>Chapter 5 - Periodic Classification of Elements>Exercise 7>Q 29

Atomic number can never be fractional.

EASY

10th CBSE

IMPORTANT

Eduwiser's CBSE Chemistry For Class X>Chapter 5 - Periodic Classification of Elements>Exercise 7>Q 30

Noble gases were known at the time of Mendeleev's classification.

EASY

10th CBSE

IMPORTANT

Eduwiser's CBSE Chemistry For Class X>Chapter 5 - Periodic Classification of Elements>Exercise 8>Q 1

The elements above atomic number $92$ are called _____ elements. (transuranic / transition / noble)

MEDIUM

10th CBSE

IMPORTANT

Eduwiser's CBSE Chemistry For Class X>Chapter 5 - Periodic Classification of Elements>Exercise 8>Q 2

_____ has the highest value of atomic volume. (Helium / Francium)

MEDIUM

10th CBSE

IMPORTANT

Eduwiser's CBSE Chemistry For Class X>Chapter 5 - Periodic Classification of Elements>Exercise 8>Q 3

Cupric compounds are blue while cuprous compounds are _____.

EASY

10th CBSE

IMPORTANT

Eduwiser's CBSE Chemistry For Class X>Chapter 5 - Periodic Classification of Elements>Exercise 8>Q 4

Elements of s-and p-blocks are also called as _____.(representative elements/transition elements)

MEDIUM

10th CBSE

IMPORTANT

Eduwiser's CBSE Chemistry For Class X>Chapter 5 - Periodic Classification of Elements>Exercise 8>Q 5

Elements of third period are known as _____. (bridge elements / typical elements)