Question

11. The elements of one short period of the Periodic Table
are given below in order from left to right:
Li Be B C O F Ne
(a) To which period do these elements belong ?
(b) One element of this period is missing. Which is the
missing element and where should it be placed ?
(c) Place the three elements fluorine, beryllium and
nitrogen in the order of increasing electronegativity.
(d) Which one of the above elements belongs to the
halogen series?
​

Answer 1

Ans.1) 2nd period

Ans.2) Nitrogen (N)

Ans.3) Nitrogen, Beryllium, flourine

Ans.4) Flourine.

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