Question

Anita wrote the formula for oxygen molecule as 20. is it correct or not why​

Answer 1

The statement in not correct, because chemical formula of oxygen is O2.

1. Oxygen molecule is formed by combination or chemical bonding of two oxygen atoms.
2. The molecular mass of oxygen molecule is 32 gram/mol and atomic mass of oxygen is 16 gram/mol.
3. The atomic number of oxygen is 8.
4. Oxygen is an important gas released by plants and is used for respiration by humans.

Answer 2

Given:

Anita wrote the formula for oxygen molecule as 2O.

To find:

Whether it's correct or not?

Solution:

Whenever someone writes 2O, it means there are two atoms of oxygen. These atoms are not bonded to one another.

But , if we want to write chemical formula for oxygen gas, it will be $O_{2}$.

• $O_{2}$ denotes a molecule of oxygen gas, which contains 2 atoms of oxygen bonded to one another.

_________________________

Additional information about oxygen atom:

• Atomic mass : 16 g/mol

• Atomic number : 8

• Electronic configuration: 1s² 2s² 2p⁴

In Modern Periodic Table:

• Period : 2

• Group : 16

Hope It Helps.