what is the name of the helping molecule that aids an enzyme and it substrate get at the active site?​

Coenzymes

Explanation:

Enzymes can use cofactors as 'helper molecules'. Coenzymes are referred to those non-protein molecules that bind with enzymes to help them fulfill their jobs. Mostly they are connected to the active site by non-covalent bonds such as hydrogen bond or hydrophobic interaction.

coezymes

Explanation:

Enzymes can use cofactors as 'helper molecules'. Coenzymes are referred to those non-protein molecules that bind with enzymes to help them fulfill their jobs. Mostly they are connected to the active site by non-covalent bonds such as hydrogen bond or hydrophobic interaction.

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).