21. The particles of Cathode rays possess __________ charge.
22. The negatively charged particles found in Cathode rays are named as __________.
23. Positive rays are emitted from __________.
24. __________ rays are also known as Canal rays.
25. __________ consists of helium ions and are doubly positively charged.
26. __________ rays consists of negatively charged particles.
27. __________ rays are light waves of very short wavelength.
28. The phenomenon in which a stable element is made radioactive by artificial disintegration is called __________.
29. The electron move around the nucleus in different circular paths called __________.
30. The maximum number of electron in a shell is determined by the formula __________.
31. A particle whose mass is equal to that of electron but carries a positive charge is called __________.
32. 2p electrons are __________ in energy that 2s electrons in the same atom.
33. Number of protons of an element also indicates its __________.
34. According to __________ Principle electrons are fed in the order of increasing orbital energy.
35. According to __________ electrons are distributed among the orbitals of a sub shell to give maximum number of unpaired electron and have same spin.
36. The specific way in which the orbitals of an atom are occupied by electrons is called __________.
37. __________ rays are stream of doubly positively charged particles.
38. Electron in the outer most shell of an atom is called __________.
39. Protons are found in the __________ of an atom and bear __________ charge.
40. The atomic number of an atom is the sum of __________ inside the nucleus.
22. The negatively charged particles found in Cathode rays are named as __________.
23. Positive rays are emitted from __________.
24. __________ rays are also known as Canal rays.
25. __________ consists of helium ions and are doubly positively charged.
26. __________ rays consists of negatively charged particles.
27. __________ rays are light waves of very short wavelength.
28. The phenomenon in which a stable element is made radioactive by artificial disintegration is called __________.
29. The electron move around the nucleus in different circular paths called __________.
30. The maximum number of electron in a shell is determined by the formula __________.
31. A particle whose mass is equal to that of electron but carries a positive charge is called __________.
32. 2p electrons are __________ in energy that 2s electrons in the same atom.
33. Number of protons of an element also indicates its __________.
34. According to __________ Principle electrons are fed in the order of increasing orbital energy.
35. According to __________ electrons are distributed among the orbitals of a sub shell to give maximum number of unpaired electron and have same spin.
36. The specific way in which the orbitals of an atom are occupied by electrons is called __________.
37. __________ rays are stream of doubly positively charged particles.
38. Electron in the outer most shell of an atom is called __________.
39. Protons are found in the __________ of an atom and bear __________ charge.
40. The atomic number of an atom is the sum of __________ inside the nucleus.
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