EASY
7th ICSE
IMPORTANT
Earn 100

Polyatomic molecules contain only one atom.

50% studentsanswered this correctly

Important Questions on Atomic Structure

EASY
7th ICSE
IMPORTANT
FRANK NEW CERTIFICATE - Chemistry>Chapter 5 - Atomic Structure>EVALUATION>Q 3
Electrons are the negatively charged particles in an atom.
EASY
7th ICSE
IMPORTANT
FRANK NEW CERTIFICATE - Chemistry>Chapter 5 - Atomic Structure>EVALUATION>Q 4
The number of protons is equal to the number of electrons in an atom.
EASY
7th ICSE
IMPORTANT
FRANK NEW CERTIFICATE - Chemistry>Chapter 5 - Atomic Structure>EVALUATION>Q 5
Calcium is a monovalent element.
EASY
7th ICSE
IMPORTANT
FRANK NEW CERTIFICATE - Chemistry>Chapter 5 - Atomic Structure>EVALUATION>Q 1
The _____ of an element is the combining capacity of an atom of the element.
EASY
7th ICSE
IMPORTANT
FRANK NEW CERTIFICATE - Chemistry>Chapter 5 - Atomic Structure>EVALUATION>Q 2
2H represents two _____ of hydrogen. (molecules/atoms)
EASY
7th ICSE
IMPORTANT
FRANK NEW CERTIFICATE - Chemistry>Chapter 5 - Atomic Structure>EVALUATION>Q 3
A proton has _____ charge. (positive/negative)
EASY
7th ICSE
IMPORTANT
FRANK NEW CERTIFICATE - Chemistry>Chapter 5 - Atomic Structure>EVALUATION>Q 4
The valency of HCO3- is _____. 1/2
MEDIUM
7th ICSE
IMPORTANT
FRANK NEW CERTIFICATE - Chemistry>Chapter 5 - Atomic Structure>EVALUATION>Write the molecular formula of the following elements

Write the molecular formula of the following elements.

Helium, Oxygen, Hydrogen, Chlorine, Iodine, Ozone, Phosphorus, Sulphur