Question

hey guys!! explain steric number and give some examples..#11thwaale

Answer 1

Answer:

Steric number is the number of atoms bonded to a central atom of a molecule plus the number of lone pairs attached to the central atom.

The steric number is calculated using the following formula: Steric Number = (number of lone electron pairs on the central atom) + (number of atoms bonded to the central atom)

Example:-

1. Methane (CH4) – Methane consists of carbon bonded to 4 hydrogen atoms and 0 lone pairs. SN is 4.
2. Water (H2O) – Water has two hydrogen atoms bonded to oxygen and also 2 lone pairs, so its SN is 4.

Hope it helps you..

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Answer 2

Answer:

There are 2 bonded atoms and no lone pairs. Steric number = 2. Carbon Dioxide (CO2) - Carbon dioxide is an example of a compound that contains 2 sets of double bonds. There are 2 oxygen atoms bonded to carbon, with no lone pairs, so the steric number is 2.