Find the period and group of the element whose atomic number is 20
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The element is Calcium...
Its period number is 4
Its group number is 2
Its period number is 4
Its group number is 2
Answered by
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Very Good question .
Atomic number of element is 20.
Element name is calcium .
Electronic configuration -------- 1s2 2s2 2p6 3s2 3p6 4s2
Number of valence electrons : 2
So,
Element belongs to 4th period.
and Group 2
Atomic number of element is 20.
Element name is calcium .
Electronic configuration -------- 1s2 2s2 2p6 3s2 3p6 4s2
Number of valence electrons : 2
So,
Element belongs to 4th period.
and Group 2
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