1. The maximum number of electrons in 2p orbital is __________.
2. 3d orbital has __________ energy than 4s orbital.
3. __________ rays are non-material in nature.
4. Charge to mass ratio of cathode rays resembles to that of __________.
5. __________ rays are most penetrating.
6. Neutrons have mass equal to that of __________.
7. Energy is __________ when an electron jumps from higher to lower orbit.
8. Second Ionization Potential has __________ value than the First Ionization Potential.
9. Electronegativity __________ from left to right in a period of Periodic Table.
10. __________ was discovered during the course of Artificial Radioactivity.
11. The velocity of alpha rays is nearly __________ of velocity of light.
12. Natural Radioactivity is confined in __________ elements.
13. The isotopes of an element differ in their __________.
14. Two electrons with the __________ spin, can never occupy the same atomic orbital.
15. ‘Al’ has electronic configuration, 1s2, 2s2, __________.
16. In a group of Periodic Table, the ionization potential __________ from top to bottom as the size of atom increases.
17. Ionization potential values __________ from left to right in a period.
18. The energy required to remove the most loosely bond electron from an atom in gaseous state is called __________.
19. The SI unit of Ionization Potential is __________.
20. An atom of sodium possesses 11 protons and __________ neutrons.
2. 3d orbital has __________ energy than 4s orbital.
3. __________ rays are non-material in nature.
4. Charge to mass ratio of cathode rays resembles to that of __________.
5. __________ rays are most penetrating.
6. Neutrons have mass equal to that of __________.
7. Energy is __________ when an electron jumps from higher to lower orbit.
8. Second Ionization Potential has __________ value than the First Ionization Potential.
9. Electronegativity __________ from left to right in a period of Periodic Table.
10. __________ was discovered during the course of Artificial Radioactivity.
11. The velocity of alpha rays is nearly __________ of velocity of light.
12. Natural Radioactivity is confined in __________ elements.
13. The isotopes of an element differ in their __________.
14. Two electrons with the __________ spin, can never occupy the same atomic orbital.
15. ‘Al’ has electronic configuration, 1s2, 2s2, __________.
16. In a group of Periodic Table, the ionization potential __________ from top to bottom as the size of atom increases.
17. Ionization potential values __________ from left to right in a period.
18. The energy required to remove the most loosely bond electron from an atom in gaseous state is called __________.
19. The SI unit of Ionization Potential is __________.
20. An atom of sodium possesses 11 protons and __________ neutrons.
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