Question

The inter nuclear distance between the two Hydrogen atoms in its molecular of the element is 74 pm . What is the atomic radius of the hydrogen atom ?​

Answer 1

Answer:

37 pm

Explanation:

Atomic radius = Diameter/2

In any atom, the internuclear space and the diameter is the same.

he internuclear distance between the two hydrogen atoms in an $H_{2}$ molecule is measured to be 74 pm. Therefore, the atomic radius of a hydrogen atom is  $\frac{74pm}{2}$=37pm

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The size of an atom is defined by the edge of its orbital. However, orbital boundaries are fuzzy and in fact are variable under different conditions. In order to standardize the measurement of atomic radii, the distance between the nuclei of two identical atoms bonded together is measured. The atomic radius is defined as one-half the distance between the nuclei of identical atoms that are bonded together.  

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The attached image contains the atomic radii of some elements (in picometers)