Classification of Elements and Periodicity in Properties - Result Question 30
####30. Which of the following order is wrong? [2002]
(a)
(b)
(c)
(d)
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Solution:
- (b) Along the period, I.P. generally increases but not regularly. Be and
are exceptions. First I.P. increases in moving from left to right in a period, but I.P. of is lower than .