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11th CBSE
IMPORTANT
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The electronic configuration of Eu (atomic number 63), Gd (atomic number 64) and Tb (atomic number 65) are

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Important Questions on Classification of Elements and Periodicity in Properties

HARD
11th CBSE
IMPORTANT
The outer electronic configuration of Gd (Atomic number 64) is
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11th CBSE
IMPORTANT
Gd (atomic number 64) has _____ unpaired electrons with sum of spin _____.
MEDIUM
11th CBSE
IMPORTANT
The electronic configuration of Gd2+ is (atomic number of Gd is 64)
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11th CBSE
IMPORTANT
The atomic number of cerium (Ce) is 58. The correct electronic configuration of Ce3+ ion is
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11th CBSE
IMPORTANT
The element with atomic number 113 has recently been discovered. Its electronic configuration is similar to that of
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11th CBSE
IMPORTANT
An element with atomic number 106 has been discovered recently. Which of the following electronic configurations will it possess?
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11th CBSE
IMPORTANT
The element Z=114 has been discovered recently. It will belong to which of the following family/ group and electronic configuration?
HARD
11th CBSE
IMPORTANT
The element with atomic number 117 if discovered would be placed in