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Question: 1
Give the trend of ionization energy in a period?
Answer: 1
1-40If we move from left to right in a period the value of ionization energy increases. Because the size of atom reduce and valence electrons are held strongly by the electrons are held strongly by the electrostatic force of nucleus. Therefore elements on left side of the periodic table have low ionization energies as compared to those on right side of the periodic table.