Question

what are the two parts of an atom? What are they made up of?​

Answer 1

• Atom is the smallest indivisible particle of the matter.

• Atom is made up of electron ,proton and neutron.

• Electrons were discovered using cathode ray discharge tube experiment.

• Nucleus was discovered by Rutherford in 1911.

• Modified cathode ray tube experiment was carried out which led to the discovery of protons.

• A fundamental particle which carries one unit negative charge and has a mass nearly equal to 1 by 1837th of that of hydrogen atom is called electron.

• A fundamental particle which carries one unit positive charge and has a mass nearly equal to that of hydrogen atom.

• A fundamental particle which there is no charge but has a mass nearly equal to that of hydrogen atom is called neutron.

Answer 2

Answer :-

The entire mass of the atom is concentrated centrally situated, a positively charged small core called the nucleus. the negatively charged electronic move around the nucleus in different orbits, the nuclear consist of positively charged protons and electrically neutral neutrons .