Define atomic number of an element. How is it related to the mass number ?

How is nuclear size related to its mass number?

The atomic number of an element is equal to the number of

Define atomic number and mass number .

Calculate the atomic number of an element whose atomic nucleus has mass number 23 and neutrin number 12. What is the symbol of the element ?

The atomic number of an element is 11 and its mass number is 23. The respective number of elec­ trons, protons and neutrons in this atom will be

The atomic number of an element is 5 and mass number is 11. Find the number of electrons, protons and neutrons present in an atom of it. How can this element be represented ?

Define atomic mass of an element in terms of mole concept.

(a) What is mean by (i) atomic number, and (ii) mass number, of an element ? Explain with the help of an example (b) What is the relation between the atomic number and mass number of an element ? (c) If an element M has mass number 24 and atomic number 12, how many neutrons does its atom contain ?