Atomic mass of an element is equal to the total number of __________ present in an atom of that element.
protons, electrons and neutrons
protons and neutrons
electrons and neutrons
protons and electrons
A = p + e
(Atomic Mass) (No. of protons) (No. of electrons)
(a) an atom has equal number of electrons and protons
(b) an atom has equal number of electrons and neutrons
(c) an atom has equal number of protons and neutrons
(d) an atom has equal number of electrons, protons and neutrons
Which of the following statement is correct about the atom of an element ?
(a) an atom can have only protons and neutrons but no electrons.
(b) an atom can have only electrons and neutrons but no protons
(c) an atom can have only electron and proton but no neutron
(d) an atom must always have a proton, neutron and electron
An atom consists of protons surrounding a nucleus that contains electrons and neutrons.