The mass number is
What is the atomic number?
The mass of a molecule is
The relative formula mass of a molecule of oxygen is
The number of particles in one mole of hydrogen
Which has the most particles in 1 mole Magnesium or Bromine
One mole of a substance is its relative atomic mass, or relative formula mass, in
The mole of an atom =
At room temperature and normal pressure We say: 1 mole of gas =
What is the mass of 5 moles of nitrogen atoms?