Question

Give one word for the following.
1. The basic unit of matter
2. The mass of the atom is concentrated here
3. The path of an electron inside an atom
4. The combining capacity of an element
5. A neutral subatomic particle with unit mass
6. Atoms with different numbers of neutrons
and the same number of protons​

Answer 1

1.Atoms

2.Nucleous

3.Orbit

4.Valency

5.Nuetron

6.Isotopes