What does 1 mol of electron signify?

The mass of 1 mol of electrons is

The mass of 1 mol of electrons is

1 mol N_(2)H_(4) loses 10 mol of electrons with th electrons with the formation of I mol of a new compound y. of the new compound contains same number of N- atoms then what will be the oxidation number of nitrogen in the new compound ? (Assume that the oxidation number of H -atom does not change)

1.Development is freedom'. What does this statement signify ?

What are 'groups' of the Modern Periodic Table. What does the group number' signify.

A tuning fork has a number 256 marked on it. What does this number signify?

What is the quantity of charge carriedy by 1 mol of electron?