1.

How does the tendency of the elements to lose electrons change in the Modern Periodic Table in (i) a group, (ii) a period and why?

Answer»

Solution :(i) The tendency to lose electrons INCREASES down a group since the ATOMIC size increases and electrons EXPERIENCE less attraction towards the nucleus.
(ii) The tendency to lose electrons decreases along a period since the electrons are FILLED in the same shell i.e., valence shell. Their attraction towards the nucleus increases DUE to decrease in atomic size.


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