Matter is made up of very small parts called atoms. Atoms can combine in different numbers and in different ways to make different molecules. Atoms and molecules make up all of the different ...

CBSE 9th Assertion Reason Questions: The Central Board of Secondary Education (CBSE) Class 9 exams 2025 ... of a molecule at least two atoms are needed. Reason: Molecules are formed by bonding ...

These clusters of strongly bonded atoms are called molecules. See how they're represented by two circles of different size and colour that are joined together. This particle diagram represents ...