EASY
10th CBSE
IMPORTANT
Earn 100

How many groups and periods are present in the long form of periodic table?

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 1>Q 30
Name two other elements which belong to the same family as
(i) Fluorine
(ii) Calcium
(iii) Carbon
EASY
10th CBSE
IMPORTANT
Eduwiser's CBSE Chemistry For Class X>Chapter 5 - Periodic Classification of Elements>Exercise 1>Q 31
On the basis of the periodic classification, identify each set belonging to either a group or a period:
(a) Na, Mg, Al        (b) Na, K, Rb        (c) B, C, N         (d) He, Ne, Ar
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE Chemistry For Class X>Chapter 5 - Periodic Classification of Elements>Exercise 1>Q 32
For each of the following pairs, which has bigger size?
(a) Na, Na+     (b) Br, Br-     (c) Cl, Br     (d) He, Ne, Ar
EASY
10th CBSE
IMPORTANT
Eduwiser's CBSE Chemistry For Class X>Chapter 5 - Periodic Classification of Elements>Exercise 1>Q 33
Name the element which was reported as rogue element. (Hydrogen/ Oxygen)
EASY
10th CBSE
IMPORTANT
Eduwiser's CBSE Chemistry For Class X>Chapter 5 - Periodic Classification of Elements>Exercise 1>Q 34
What name is assigned to group 18 elements? (Noble gases / Chalcogens / Halogens)
EASY
10th CBSE
IMPORTANT
Eduwiser's CBSE Chemistry For Class X>Chapter 5 - Periodic Classification of Elements>Exercise 1>Q 35
Which noble gas is radioactive in nature? (Xenon/Radon)
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE Chemistry For Class X>Chapter 5 - Periodic Classification of Elements>Exercise 1>Q 36
Identify the elements from the following characteristics and arrange them in increasing order of metallic character.
(a) An element which imparts golden yellow colour to the flame.
(b) An element whose oxide is used in white washing.
(c) An element which is constituent of chlorophyll i.e., green colouring matter in plants.
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE Chemistry For Class X>Chapter 5 - Periodic Classification of Elements>Exercise 1>Q 37
List the metalloids.