1.14 Contrast the energy change that occurs when two helium atoms or two hydrogen atoms combine.

What happens when two helium atoms combine?

Helium atoms are stable on their own, so when they approach each other, there is minimal attraction, and the energy change is minimal or almost zero.

Why do helium atoms not easily form bonds?

Helium has a full outer electron shell, making it a noble gas and already stable. There’s no need for bonding, leading to minimal energy change.

What happens when two hydrogen atoms combine?

Hydrogen atoms form a covalent bond, releasing energy as they achieve a more stable, lower-energy configuration. Atoms forming a bond = energy is releasd

Why do hydrogen atoms form bonds?

Hydrogen atoms are unstable by themselves and need to pair their electrons to achieve a stable configuration. Bonding results in energy release.