The atoms of same element having same atomic number but different mass number are called____________________?

Related Mcqs:

The atomic radii decreases by increasing atomic number in________________?

A. Alkali metal B. Alkaline earth metal C. Elements from Li to Ne D. Halogens...

Concept of Triads was introduced by_______________?

A. Dobereiner B. Newland C. Mendeleev D. Al-Razi...

Which order of ionization energy is correct_________________?

A. Mg P C. Mg > A1 D. both B & C...

Which statement is incorrect ?

A. All the metals are good conductor of electricity B. All the metals are good conductor of heat C. All the metals form positive ions D. All the metals form acidic oxides...

Which one of the following is not a periodic property ?

A. Melting point of elements B. Boiling point of elements C. Ionization energy of elements D. Coordination number of ions...