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khurram usman
khurram usman is offline
#1
Sep20-11, 10:32 AM
P: 79
i got a mcq in my test:

Ionization energy increases:
a) across a period
b) down a group
c) from metal to non-metal
d) all of above

i am confused between option 'a' and 'c'
what should be the right answer?
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