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3 years ago

Help me please

Chemistry

1 answer:

Serhud [2]3 years ago

8 0

1.what is an atomic model ?

= A smallest particle of an element that can take part in chemical reaction without division is known as atomic model .

2. What is called atomic number and mass number?

=The total number of protons present in the nucleus of an atom is known as atomic number .

=The mass number of an atomic number is amu.

3. What is called an element?

=An element is the simplest pure form of a substance which cannot be split up into other simpler substance by any chemical method.

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