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10th CBSE
IMPORTANT
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Vertical columns of elements in the periodic table are called .

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Important Questions on Periodic Classification of Elements

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10th CBSE
IMPORTANT
Foundation Science Chemistry FOR CLASS 10>Chapter 1 - Periodic Classification of Elements>EXERCISES>Q II
The elements of group 17 are known as _____.
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10th CBSE
IMPORTANT
Foundation Science Chemistry FOR CLASS 10>Chapter 1 - Periodic Classification of Elements>EXERCISES>Q II
The first period contains _____ elements.
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10th CBSE
IMPORTANT
Foundation Science Chemistry FOR CLASS 10>Chapter 1 - Periodic Classification of Elements>EXERCISES>Q II

Moseley classified elements according to their _____. (atomic number/atomic mass)

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10th CBSE
IMPORTANT
Foundation Science Chemistry FOR CLASS 10>Chapter 1 - Periodic Classification of Elements>EXERCISES>Q II
Elements in the same group have similar _____.
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10th CBSE
IMPORTANT
Foundation Science Chemistry FOR CLASS 10>Chapter 1 - Periodic Classification of Elements>EXERCISES>Q II
Halogens belong to group _____.
EASY
10th CBSE
IMPORTANT
Foundation Science Chemistry FOR CLASS 10>Chapter 1 - Periodic Classification of Elements>EXERCISES>Q II
Mendeleev’s periodic table is based on atomic _____. (number / mass)
EASY
10th CBSE
IMPORTANT
Foundation Science Chemistry FOR CLASS 10>Chapter 1 - Periodic Classification of Elements>EXERCISES>Q II
The valency of elements in group 2 is _____.
MEDIUM
10th CBSE
IMPORTANT
Foundation Science Chemistry FOR CLASS 10>Chapter 1 - Periodic Classification of Elements>EXERCISES>Q II
The oxides of the elements of groups 1 and 2 are _____ in nature.