Question

what is chemistry.
what is element
what is atom​

Answer 1

Chemistry:-

It is that branch of science which deals with the study of matter, chemical reactions, types of chemical reactions.

It's sub branches are:-

- Organic Chemistry

- Inorganic chemistry

- physical chemistry

Element:-

It is the purest form of matter. Elements are made of atoms and molecules.

Example:-

Gold (Au), Iron (Fe) etc.

Atoms:-

Atoms are the smallest particles which have positive nucleus and electrons revolving in the atom. Atoms are the building blocks of matter.

Answer 2

Answer:

Hey mate here is your answer:

1. Chemistry is the scientific discipline involved with elements and compounds composed of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during a reaction with other substances
2. A chemical element is a species of atom having the same number of protons in their atomic nuclei
3. An atom is the smallest unit of matter that has the properties of an element. It is composed of a dense core called the nucleus and a series of outer shells occupied by orbiting electrons.

I hope this would help you

thank you :)