Why is choline 35.5 on the periodic table?

Answer 1

On the Periodic Table, the atomic weight listed for most of the elements is the average of that element's isotopes.

Chlorine has 2 common isotopes: Chlorine-35 (75.77% of all chlorine) and chlorine-37 (24.23%). This has two extra neutrons. This works out to an average of 35.453.

Answer 2

Choline is not on the periodic table. You're thinking of chlorine. Chlorine has an atomic weight of approximately 35.453. The reason this is not approximately a whole number is that there are two stable isotopes of chlorine, with atomic weights approximately 35 and 37. About 75.77 % of the atoms in a typical sample of chlorine are chlorine-35 and 24.23% are chlorine-37.

Answer 3

Choline is not listed on the periodic table because it is not an element. Choline is a vital nutrient that is often grouped with B vitamins, essential for the proper functioning of the body, especially for the brain and nervous system.