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Byju's Answer
Standard XII
Chemistry
Groups
The group of ...
Question
The group of the element with electronic configurations:
1
s
2
2
s
2
2
p
6
3
s
2
3
p
6
4
s
2
is 2. If true enter 1, else enter 0.
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Solution
From its configuration, it can be seen that
1
s
2
,
2
s
2
2
p
6
,
3
s
2
3
p
6
,
4
s
2
it has two valence electron so it will belong to second group of table.
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2
Similar questions
Q.
Name the elements with the following electronic configuration.
1
s
2
2
s
2
2
p
6
3
s
2
3
p
6
3
d
6
4
s
1
Q.
The electronic configuration of Ti is 1
s
2
2
s
2
2
p
6
3
s
2
3
p
6
3
d
2
4
s
2
and it represents
Q.
Electronic configuration of an element is
1
s
2
2
s
2
2
p
6
3
s
2
3
p
6
3
d
5
4
s
1
. Total number of electrons present in M shell of this element is:
Q.
Three atoms have the following electron configurations respectively:
(i)
1
s
2
2
s
2
2
p
6
3
s
2
3
p
1
(ii)
1
s
2
2
s
2
2
p
6
3
s
2
3
p
5
(iii)
1
s
2
2
s
2
2
p
6
3
s
2
3
p
6
4
s
1
(a) Which of the three has the largest
(
I
E
)
1
?
(b) Which has the largest
(
I
E
)
4
?
Write your answer as a two digit number.
Ex - If answer for a & b is 3 & 2 respectively, answer as 32.
Q.
I: An element that has the electron configuration
1
s
2
2
s
2
2
p
6
3
s
2
3
p
6
3
d
3
4
s
2
is a transition element.
II: In atoms of transition elements, the 1s, 2s, 2p, 3s and 3p orbitals are completely filled in the ground state.
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