MEDIUM
11th CBSE
IMPORTANT
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Atoms of the elements belonging to the same group of periodic table will have the:

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Important Questions on Classification of Elements and Periodicity in Properties

MEDIUM
11th CBSE
IMPORTANT
Element with valence shell electronic configuration as n-1d5 ns1 is placed in which of the following group and block of elements?
EASY
11th CBSE
IMPORTANT
Of the following pairs, the one containing examples of metalloid elements in the periodic table is
HARD
11th CBSE
IMPORTANT
Arrange the following in proper order of atomic size
MEDIUM
11th CBSE
IMPORTANT
Which of the following sets represents a collection of isoelectronic species? (Atomic number Cs=55Br=35).
MEDIUM
11th CBSE
IMPORTANT
Which of the following has highest value of ionic radius?
EASY
11th CBSE
IMPORTANT
The correct order of first ionisation enthalpy among following elements Be, B, C, N, O is