Atoms and Molec...

One a.m.u. or one 'u' is equal to :

The modern atomic mass unit is based on the mass of :

Atomic number (Z) of a neutral atom and mass number (A) of an atom are equal to: 

The symbol for SI unit of mole is:

The number of moles of '$$X$$ ' atoms in $$93$$ gm of 'X' are:

The number of atoms in $$60$$ g of neon$$[Ne]$$ are:

What mass of $$Na$$ will contain $$6.023 \times  10^{23}$$ number of atoms?

The number of potassium atoms present in $$117$$ g of potassium sample (Molecular Weight $$= 39$$ g/mole) is:

A/An______ is the smallest particle of a substance which can take part in a chemical reaction.

The mass of one molecule of compound $${C}_{60}{H}_{122}$$ is :