Question 1
Compare the properties of electrons, protons and neutrons?
ElectronsProtonsNeutronsElectrons are present outside the nucleus of an atomProtons are present in the nucleus of an atom.Neutrons are present in the nucleus of an atom.Electrons are negatively charged particlesProtons are positively charged particlesNeutrons have a neutral chargeThe mass of the electron is said to be negligibleThe mass of a proton is approximately 2000 times the mass of an electron.The mass of neutron is almost equal to the mass of the proton.