41. __________ limits the number of electron to different shell or orbits.
42. Sir William Crookes in 1878, discovered that the cathode in high vacuum tube emit radiations what he called __________.
43. X-rays were discovered in 1895 by __________.
44. The discovery of proton was done in 1886 by __________.
45. Neutrons were discovered by __________ in 1932 by the bombardment of beryllium with alpha particles.
46. Each atom has a __________, which contains all the positive charge and practically all the mass of atom.
47. Complete the reaction: 4Be9 + 2H4 ® __________ + __________.
48. __________ have higher ionization power as compared to b-rays.
49. No dark spaces between the colours are present in __________.
50. The symbol e+ represents __________.
51. p-orbitals are __________ shaped.
52. The energy released when an electron is added to an atom in the gaseous state is called __________.
53. The power of an atom to attract a shared pair of electrons towards itself is called __________.
54. Fluorine is __________ electronegative than chlorine.
55. Lyman series of spherical lines appear in the __________ portion of spectrum.
56. The electrons with __________ spin occupy the same orbital.
57. 3d orbital has __________ energy than 4s orbital.
58. Energy and frequency are __________ proportional to each other.
59. Ionic radii of cations are __________ than the atoms from which they are formed.
60. Ionic radii of anions are __________ than the atoms from which they are formed.
42. Sir William Crookes in 1878, discovered that the cathode in high vacuum tube emit radiations what he called __________.
43. X-rays were discovered in 1895 by __________.
44. The discovery of proton was done in 1886 by __________.
45. Neutrons were discovered by __________ in 1932 by the bombardment of beryllium with alpha particles.
46. Each atom has a __________, which contains all the positive charge and practically all the mass of atom.
47. Complete the reaction: 4Be9 + 2H4 ® __________ + __________.
48. __________ have higher ionization power as compared to b-rays.
49. No dark spaces between the colours are present in __________.
50. The symbol e+ represents __________.
51. p-orbitals are __________ shaped.
52. The energy released when an electron is added to an atom in the gaseous state is called __________.
53. The power of an atom to attract a shared pair of electrons towards itself is called __________.
54. Fluorine is __________ electronegative than chlorine.
55. Lyman series of spherical lines appear in the __________ portion of spectrum.
56. The electrons with __________ spin occupy the same orbital.
57. 3d orbital has __________ energy than 4s orbital.
58. Energy and frequency are __________ proportional to each other.
59. Ionic radii of cations are __________ than the atoms from which they are formed.
60. Ionic radii of anions are __________ than the atoms from which they are formed.
0 on: "Structure of Atom - Fill in the blank exam questions Chemistry Part -3"