Question: An aluminum isotope consists of 13 protons, 13 electrons, and 14 neutrons. Its mass number is…

Answer: 27

Question: Most of the volume of an atom is occupied by the

Answer: electrons

Question: The mass number of 1 mol of chromium (atomic mass 51.996 amu) is

Answer: 51.996g.

Question: Whose series of experiments identified the nucleus of the atom?

Answer: Rutherford

Question: What element is present as 1.o mole if thee are 63.5 grams of it in a sample?

Answer: Cu