The atomic nucleus contains
(i) protons (ii) neutrons
(iii) quarks (iv) leptons

An atom contains protons, neutrons and ______

Draw the structure of the following atoms showing the nucleus containing - protons, neutrons and the orbits with the respective electrons : Silicon (At. no. 14, Mass no. = 28].

Draw the structure of the following atoms showing the nucleus containing - protons, neutrons and the orbits with the respective electrons : Lithium [At. no. =3, Mass no. = 7].

Draw the structure of the following atoms showing the nucleus containing - protons, neutrons and the orbits with the respective electrons : Carbon [At. no. 6, Mass no. = 12].

Draw the structure of the following atoms showing the nucleus containing - protons, neutrons and the orbits with the respective electrons : Sodium [At. no. 11, Mass no. 23].

Which of the following have been discovered by alpha particle scattering experiment? (i) Electron (ii) Proton (iii) Nucleus (iv) Neutron

The nucleus of the atom of an element contains 17 protons and 18 neutrons. Calculate the atomic number and mass number of the element and represent them along with the symbol of the element.