To two decimal places, what is the relative atomic mass and the molar mass of the element potassium, k?

The molar mass of potassium or K is 39.09 g,s/mole and the atomic mass is 39.09 u+-0.0001u. Potassium was first discovered by Humphrey Davey and was first found in the ashes of plants. It also occurs in the mineral sylvite or KCL and is mined as such.

Cis the

The correct answer is "hydrogen".