Question

explain the terms atoms and molecule with example

Answer 1

$<b>$

☺️☺️☺️
___________________________

All the Matter is made up of atoms.

$\underline\textbf{ATOM:}$
• An Atom is the smallest particle of ordinary matter that takes part in a Chemical Reaction.

• It is made up of Sub-atomic Particles, which are :
- Protons
- Neutrons and
- Electrons.

- Atoms of most of the elements are reactive and doesn't exist in free state. They exist in combination of same element or different element.

- Atom size is indicated by it's radius, which is called Atomic radius .

- Hydrogen is the smallest atom of all

___________________________

$\underline\textbf{MOLECULE:}$
• A Molecule is a combination of Atoms.

- Molecule is the Smallest particle in a substance and can exist in free state.

• There are two types of Molecules:
- Molecule of Elements
- Molecule of Compunds

• Molecule of Element is entirely made of one type of atom.
Eg: A Molecule of Hydrogen element, which is $H_{2}$ consists of 2 Hydrogen atoms combined together (only Hydrogen atoms)

- No. of atoms present in a Molecule of an Element is called as Atomicity.

Atomicity of $H_{2}$ is two.
i.e., $H_{2}$ is diatomic.

• Molecule of Compound consists two or more atoms (or) elements chemically joined together.
Eg: Water ($H_{2}O$)
Combined Elements are Hydrogen and Oxygen. (Ratio by Mass is 1:8)

___________________________

✌✌✌

Answer 2

Answer:

atom:

the smallest particle of ordinary matter that takes part in a chemical reaction is called atom.

example:

Neon (Ne)

Hydrogen (H)

Argon (Ar)

Iron (Fe)

Calcium (Ca)

molecule:

the smallest particle in a substance that can exist in free state is called molecule.

Example:

H2O (water)

N2 (nitrogen)

O3 (ozone)

CaO (calcium oxide)

C6H12O6 (glucose, a type of sugar)

NaCl (table salt)

Explanation:

hope its help you

please mark me as brainlist

please please please