An atom of an element is 13 times heavier than the mass of a carbon atom. What is its mass in a.m.u. ?

What is a.m.u ?

One mole of element X has 0.444 times the mass of one mole of element Y. One atom of element X has 2.96 times the mass of one atom of 12_C. What is the atomic mass of y ?

What is the mass of one atom of C(atomic mass 14)

What is atomic mass unit?

An atom of element E contains 3 protons, 3 electrons and 4 neutrons : (b) What is its mass number ?

The atomic number of an element is 13. What will be the number of electrons in its ion X3+

The atom of an element is made up of 4 protons, 5 neutrons and 4 electrons. What are its atomic number and mass number ?

The atomic mass of an element is the weighted average of the atomic masses of different isotopes of that element .This explains,why atomic masses of many elements show large departures from integer values.However ,even if we consider msases of individual isotpes,they are not strictly integer multiples of the mass of a hydroen atom.How do yo account for this fact?

The mass of a H-atom is less than the sum of the masses of a proton and electron. Why is this?