15. Rutherford's alpha-particle scattering experiment wresponsible for

1.	15. Rutherford's alpha-particle scattering experiment wresponsible for the discovery of(a) Atomic Nucleus(c) ProtonIsotopes of an element have(a) the same physical properties(b) different chemical properties(c) different number of neutrons(d) different atomic numbersNumber of valence electrons in Cl ion are:(a) 16(b) Electron(d) Neutron16.17.(b) 8(c) 17(d) 18ATOM
Answer» 15. option A 16. option c 17. option c

15. Rutherford's alpha-particle scattering experiment wresponsible for the discovery of(a) Atomic Nucleus(c) ProtonIsotopes of an element have(a) the same physical properties(b) different chemical properties(c) different number of neutrons(d) different atomic numbersNumber of valence electrons in Cl ion are:(a) 16(b) Electron(d) Neutron16.17.(b) 8(c) 17(d) 18ATOM

Answer»

15. option A

16. option c

17. option c