Question

Two hydrogen atoms interact to form a hydrogen molecule. Classify the following statements that describe the stage of bond formation in a hydrogen molecule according to the predominant force existing between the two hydrogen atoms. Drag the appropriate items to their respective bins.

Answer 1

Attractive force is predominant between two atoms - The two hydrogen atoms approach each other to form a bond ; The two hydrogen atoms start to combine to form a hydrogen molecule.

This is attractive force because H atoms are coming towards each other due to attractive forces by which they form a bond and and the H atoms after bond formation become a H2 molecule

Repulsive force is predominant between the two atoms - The internuclear distance between the two hydrogen atoms is less than the bond length ; The potential energy of the system is positive.

If the internuclear distance is less than bond length then the two atoms repel each other a bit which is the repulsive force and the overall potiental energy of the system increases and becomes positive

Attractive and repulsive forces balance each other - The potential energy of the system is at minimum ; The two hydrogen atoms form a stable hydrogen molecule.

If there is no net attraction or repulsion then the overall potential energy of system remains balanced and the molecule formed is thus stable

There is no interaction between the two atoms - The two hydrogen atoms are very far apart

This is the only reason because at such distance the attractive force and repulsive force do not apply.

Answer 2

ttractive force is predomunanive force is predomunan between the two atoms between the two atoms The two hydrogen atoms start to combine to form a hydrogen molecule The internuclear distance between the two hydrogen atoms is less than the bond length The two hydrogen atoms approach each other to form a bond. The potential energy of the system is positive. Attractive and repulsive here is no interaction betwee forces balance each other the two atoms The two hydrogen atoms form a stoble hydrogen molecule. The two hydrogen atoms are very far apart The potential energy of the system is at minimum