Question

differentiate between atom and element?

And, molecule and compound?​

Answer 1

Answer:

Atom is a particle of matter that characterizes a chemical element.

Explanation:

An atom is a particle of matter that characterizes a chemical element. It is the smallest part of ordinary matter. It is made from particles called protons, neutrons and electrons called the subatomic particles.

An element is a substance that is made entirely of one type of atom. For example, the element sodium is made up of only sodium atoms.

A molecule is a substance that contains two or more atoms chemically joined, such as

H

2

,

O

2

A compound is a substance that is made up of two or more different elements that are chemically joined, such as

H

2

O

,

C

O

,

N

a

C

l

.

Note: All compounds are molecules, but not all molecules are compounds.

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Answer 2

A particular atom will have the same number of protons and electrons and most atoms have at least as many neutrons as protons. An element is a substance that is made entirely from one type of atom. A compound is a substance made from two or more different elements that have been chemically joined.