Structure of th...

What is a neutron?

The number of orbitals in $$n=3$$ are :

In Rutherford experiment, most of the alpha particles go straight through the foil because________

What is the atomic number of oxygen?

What is the mass number of potassium $$_{19}K^{40}$$,?

Which term can be used for the number of protons present in an atom?

The mass number of a neutral atom is 31 electrons. What is the atomic number of this atom?

Calculate the atomic number and mass number in the following case-

The atom of an element is made up of $$4$$ protons, $$5$$ neutrons and $$4$$ electrons.

What is the term used for the number of protons and neutrons present in the nucleus of an atom?

What is the mass number of $$_{17}Cl^{35}$$ ?