A single atom of element Q has a mass of 3.82 x 10-23 g. What is the name of the element Q?

Answer 1

If one atom of Q has a mass equal to 3.82 x 10^-23 g, then Avogadro's number many atoms of Q have a mass of (6.022 x 10^23)(3.82 x 10^-23) = 23.00 g. This is important because Avogadro's number many atoms of a given element, that is a mole of atoms, have a mass in grams equal to the atomic mass of the element. An atomic mass of 23 corresponds to sodium, Na, which has 11 protons and 12 neutrons.

Answer 2

Divide by Avogadro's number to find the atomic weight and look at a Mendeleiev's table