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10th West Bengal Board
IMPORTANT
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Periodicity of elements is observed due to similar .(Atomic size, electronic configuration)

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Important Questions on Periodic Table and Periodicity in Properties

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10th West Bengal Board
IMPORTANT
Elements of the same group have equal _____.
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10th West Bengal Board
IMPORTANT
Halogens have high electron affinities.
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10th West Bengal Board
IMPORTANT
Fluorine has higher electro-negativity than chlorine.
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10th West Bengal Board
IMPORTANT
All groups in the periodic table contain both metals and non-metals.
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10th West Bengal Board
IMPORTANT
Atoms of elements in the same group in the periodic table have the same number of electrons.
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10th West Bengal Board
IMPORTANT
Ionisation potential of the elements increases as one moves from left to right.
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10th West Bengal Board
IMPORTANT
Elements of group II are metals while that of group 17 are non-metals.
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10th West Bengal Board
IMPORTANT
Radio-activity of the elements is a periodic property.