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10th CBSE
IMPORTANT
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Elements of third period are known as . (bridge elements / typical elements)

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Important Questions on Periodic Classification of Elements

EASY
10th CBSE
IMPORTANT
Eduwiser's CBSE Chemistry For Class X>Chapter 5 - Periodic Classification of Elements>Exercise 8>Q 7
3d transition series consists of _____ elements. 9 /10 /11
EASY
10th CBSE
IMPORTANT
Eduwiser's CBSE Chemistry For Class X>Chapter 5 - Periodic Classification of Elements>Exercise 8>Q 8
The group all members of which are in gaseous state under ordinary conditions is group _____. 2/18/1
HARD
10th CBSE
IMPORTANT
Eduwiser's CBSE Chemistry For Class X>Chapter 5 - Periodic Classification of Elements>Exercise 8>Q 9
The configuration ns2np5 exist in _____.
EASY
10th CBSE
IMPORTANT
Eduwiser's CBSE Chemistry For Class X>Chapter 5 - Periodic Classification of Elements>Exercise 8>Q 10
6th period of periodic table consists of _____ elements. (Write answer in number(s))
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE Chemistry For Class X>Chapter 5 - Periodic Classification of Elements>Exercise 8>Q 12
Elements having three incomplete outermost subshells are called _____ elements. ( Answer the block,i.e x-block)
EASY
10th CBSE
IMPORTANT
Eduwiser's CBSE Chemistry For Class X>Chapter 5 - Periodic Classification of Elements>Exercise 8>Q 13
According to modern periodic law, the properties of the elements are in periodic function of their _____. (Atomic number/ Atomic mass)
HARD
10th CBSE
IMPORTANT
Eduwiser's CBSE Chemistry For Class X>Chapter 5 - Periodic Classification of Elements>Exercise 8>Q 14
The general electronic configuration of transition elements is (n-1)d1-ans1-2. The value of a will be _____. (6, 7, 10)
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE Chemistry For Class X>Chapter 5 - Periodic Classification of Elements>Exercise 8>Q 15
Separation of a mixture containing compounds of some members of lanthanoids cannot be done by _____ (physical/ chemical) methods.