Why does the first ionization enthalpy increases as we go from left to right across a given period of the periodic table?
Answers
Answer:
As we move from left to right across the periodic table.. the size goes on decreasing due to increase in effective nuclear charge.. so the atom gets smaller.. and will be difficult to remove electron from it.. therefore IE increase left to right✔
Answer:
The value of ionization enthalpy increases with the increase in atomic number across the period. This is due to the fact that in moving across the period from left to right :
(i) nuclear charge increases regularly by one unit.
(ii) progressive addition of electrons occurs in the same level.
(iii) atomic size decreases.
This is due to the gradual increase in nuclear charge and with the simultaneous decrease in atomic size the electrons are more and more tightly bound to the nucleus. This results in the gradual increase in ionization energy across the period.
Explanation:
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