Question

MATCH THE FOLLOWING:-

LIST I

1.)Mass number of an atom is the number of protons and
2.) The sub - atomic particle with a negligible mass .
3.) An atom having stable electronic configuration.
4.) A molecule formed by sharing of electrons [covalency].
5.) A metallic atom having unstable electronic configuration.

LIST II

A. Electron
B.Argon
C. Nitrogen
D. Sodium
E. Neutrons.

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Answer 1

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List I List II

1. Mass number of an atom is the number of protons and E: Neutrons

2. The sub-atomic particle with a negligible mass. C: Nitrogen

3. An atom having stable electronic configuration. B: Argon

4. A molecule formed by sharing of electrons [covalency] C: Nitrogen

5. A metallic atom having unstable electronic configuration. D: Sodium

Answer 2

Explanation:

1. neutron.

2. electron.

3. Argon

4. Nitroge

5. Sodium

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