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Atoms and Molecules Class 9 Science

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Questions and Answers

What is an atom?

The smallest constituent of an element that exhibits its properties (correct)

A type of bond formed between atoms

A large part of matter that takes up space

A combination of molecules

How are molecules formed?

By separating from each other

By existing independently

By atoms combining through chemical bonds (correct)

Due to the presence of ions

Can atoms exist independently?

No, they only exist as ions

No, they form molecules immediately

Yes, they always exist independently

Yes, but only when combined with other atoms (correct)

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<p>It provides free CBSE Solutions and study materials</p> Signup and view all the answers

What defines a molecule?

<p>Smallest unit of matter with unique properties</p> Signup and view all the answers

Study Notes

Atoms and Molecules

Atoms are small in size and exhibit the properties of the element they belong to.
Atoms can exist independently or form ions and molecules.

Formation of Molecules

Molecules are formed when one or multiple atoms combine through chemical bonds.
A molecule can be formed by two or more atoms in a chemical bonding.

Characteristics of Atoms

An atom is the smallest constituent of an element that exhibits its properties.

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Students can download Class 9 Maths NCERT Solutions to revise the complete syllabus and score more marks in examinations.
CBSE Class 9 Science Revision Notes 2023-24 PDF is available for download.

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Description

Learn about the significance of atoms and molecules in chemical reactions, their properties, formation of ions and molecules, and chemical bonding. Explore how atoms combine to form molecules, the smallest constituents of elements.