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(a) What property do all elements in the...

(a) What property do all elements in the same column of the Periodic Table as boron have in common?
(b) What property do all elements in the same column of the Periodic Table as fluorine have in common?

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(a) The element boron is in column (or group) 13 of the periodic table and has a valency of 3. So all the elements in the same column of peridic table as boron will have valency of 3.
(b) The element fluorine is in column (or group) 17 of the periodic table and has a valency of 1. So all the elements in the same column of periodic table as fluorine will have a valency of 1.
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LAKHMIR SINGH & MANJIT KAUR-PERIODIC CLASSIFICATION OF ELEMENTS-Exercise
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  5. The positions of three elements A,B and C in the periodic table are sh...

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  8. How does the electronic configuration of an atom relate to its positio...

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  19. What property do all the elements in the same group of the periodic ta...

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