Question

8
llowing questions.
(a) Identify an element with five electrons in the outer subshell.
(b) Identify an element that would tend to lose two electrons.
(c) Identify an element that would tend to gain two electrons.
(d) Identify the group having metal, non-metal, liquid as well as gas at the room
temperature.
The increasing order of reactivity among group 1 elements is Li < Na < K < Rb <Cs
whereas that among group 17 elements is F > CI > Br > I. Explain.
Write the general outer electronic configuration of s-, p-, d- and f- block elements.
Assign the position of the element having outer electronic configuration
(i) nsinp4 for n=3 (ii) (n-1)ďns2 for n=4, and (iii) (n-2) f ? (n-1)d'ns2 for n=6, in the
periodic table.
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Answer 1

Answer:

(a) general electronic configuration of elements having five electrons in the outer subshell is ns^2np^5

Explanation:

this configuration belongs to 17th group (halogen family)