EASY
7th ICSE
IMPORTANT
Earn 100

Write the valency of Copper.

Important Questions on Atomic Structure

MEDIUM
7th ICSE
IMPORTANT
Write the valency of sulphide.
MEDIUM
7th ICSE
IMPORTANT
Write the valency of the following : Sulphite
EASY
7th ICSE
IMPORTANT
Write the valency of the following: Nitrate
EASY
7th ICSE
IMPORTANT
An atom has 8 electrons in its outermost shell. Explain Its chemical behaviour
MEDIUM
7th ICSE
IMPORTANT

Sodium atom transfer an electron to chlorine atom to form a sodium chloride molecule.

How do these atoms combines?

MEDIUM
7th ICSE
IMPORTANT

What is the difference between the molecule of an element and the molecule of a compound? Give one example of each.

MEDIUM
7th ICSE
IMPORTANT
Explain the chemical behaviour of an atom.
MEDIUM
7th ICSE
IMPORTANT
The number of electrons, protons and neutrons in a species are equal to 18, 16 and 16 respectively. Assign the proper symbol to the species.