Question

Write down differenc between
1: Elements and Molecule
2: Molecules and Compound​

Answer 1

Answer:

Element -A substance that cannot be broken down into simpler substances by chemical means. An element is composed of atoms that have the same atomic number, that is, each atom has the same number of protons in its nucleus as all other atoms of that element.

Eg - hydrogen, helium, lithium, oxygen

Molecule -A molecule is an electrically neutral group of two or more atoms held together by chemical bonds.

Eg water molecule (H2O), hydrogen molecule (H2)

Compounds- Compounds are substances made from atoms of different elements joined by chemical bonds. They can only be separated by a chemical reaction.

Eg H2So4, NaOh

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