EASY
10th CBSE
IMPORTANT
Earn 100

How many groups and periods are present in the modern periodic table?

Important Questions on Periodic Classification of Elements

EASY
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 1>Q 2
Name the first three elements of group 17 of modern periodic table?
EASY
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 1>Q 3
Define modern periodic law.
HARD
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 1>Q 4
Give the demerits of Mendeleev's periodic table.
MEDIUM
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 1>Q 5
How does the electronic configuration of an atom relate to its position in the modern periodic table?
MEDIUM
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 1>Q 6
Write the triads formed by Dobereiner.
MEDIUM
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 1>Q 7
Give reasons:
Elements in a group of periodic table have similar chemical properties.
MEDIUM
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 1>Q 7
Give reasons:
Elements of group 18 are called zerovalent.
HARD
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 1>Q 8
An element X (atomic number 17) reacts with an element Y(atomic number 20) to form a divalent halide. Identify the position of the elements X and Y.