Question

An element has electronic configuration
1s², 2s², 2p3 which period
Which period and group
belong to
does it
to a​

Answer 1

Answer:

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Explanation:

A number of electrons present in valence shell of penultimate Shell represents the group of elements.  

For s block elements: no.of group=number of valence shell electron.

p block elements: no. of group= 2 + 10 + number of valence electrons.

d block elements: no. of group= number(n-1)d electrons + number of electrons in nth shell.

Here, the differential electron is in p orbital hence, it belongs to p block

No.  of group= 2+ 10 + 3=15 i.e 15th group or VA group

Answer 2

Answer:

SIS IT IS A VERY EASY QUESTION.

1 S↑2 , 2 S↑2 , 2 P↑3 , THEREFORE THE TOTAL ELECTRONIC CONFIGURATION IS 6 .

IT IS NITROGEN ( N )

PERIOD - 2 .

GROUP - 15.

@ AMINUL HOQUE