How many elements have one letter in the periodic table?

Answer 1

There are 14.

In alphabetical order they are:

Boron (B)

Carbon (C)

Fluorine (F)

Hydrogen (H)

Iodine (I)

Nitrogen (N)

Oxygen (O)

Phosphorus (P)

Potassium (K)

Sulphur (S),

Tungsten (W),

Uranium (U),

Vanadium (V)

Yttirium (Y)

Answer 2

You haven't said what symbol you are talking about, but if it is the symbol of an element, those are always composed of either one or two letters.

Answer 3

14 elements: H, B, C, N, O, F, P, S, K, V, Y, I, W, U

Answer 4

14 of them. They are H, B, C, N, O, F, P, S, K, V, Y, I, W and U.