Question

1.What is atomicity.
2.Difference between 2H&H2​

Answer 1

Answer:

1.Atomicity is defined as the total number of atoms present in a molecule. For example, each molecule of oxygen (O2) is composed of two oxygen atoms. So atomicity of oxygen is 2.In older contexts, the term atomicity is sometimes used in the same sense as valency.

2.H2 and 2H are completely different from each other as H2 is molecular hydrogen and on other side 2H means there will be two separate moles of elemental hydrogen.

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Answer 2

Answer:

1.Atomicity is defined as the total number of atoms present in a molecule. For example, each molecule of oxygen (O2) is composed of two oxygen atoms. ... Monoatomic-composed of 1 atom e.g. He, Ne, Ar (all noble gases are monoatomic) Diatomic-composed of 2 atoms e.g. H2 , N2 , O.

2. H2 is molecular hydrogen.it is a molecule of hydrogen that consists of two hydrogen atoms bonded together by one single bond. 2H denotes two moles of elemental hydrogen.it should be noted that elemental hydrogen is not bonded to anything.