•A,B and C are 3 elements having their atomic number equal to 2,10 and 5 respectively.
Ques). Which of these elements belong to the same period, And Why?
(Need explanation! In your own understandable words).
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2
In here
we have
element A whose atomic no. is 2
according to periodic table A is Helium which belongs to the first period
element B whose atomic no. is 10
so according to periodic table B is neon which belongs to 2 Nd period and similarly element C whose atomic no. is 5 is boron which belongs to second period .
so , B and C belong to same group .
we have
element A whose atomic no. is 2
according to periodic table A is Helium which belongs to the first period
element B whose atomic no. is 10
so according to periodic table B is neon which belongs to 2 Nd period and similarly element C whose atomic no. is 5 is boron which belongs to second period .
so , B and C belong to same group .
nancyyy:
Cause answer is samr
i think yes
It is correct:-)
hmm
ok bye thanks
But Is there any trick to see wheather the elements belong to same period?
in period element are arranged in horizontally with increasing atomic no
Okay Thanks:-)
and in group they arranged in vertically with same Valence electron in its last orbit
hmm bye :-)
Answered by
5
HERE IS YOUR ANSWER
_____________________________
First, write down the simple electronic configuration of the given elements.
B and C are having 2.shells ad therefore belong to the same period.
_____________________________
THANK YOU
_____________________________
First, write down the simple electronic configuration of the given elements.
B and C are having 2.shells ad therefore belong to the same period.
_____________________________
THANK YOU
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