Chemistry
The electronic configuration of the element T is 2, 8, 8, 1.
(i) What is the group number of T ?
(ii) What is the period number of T ?
(iii) How many valence electrons are there in an atom of T ?
(iv) What is the valency of T ?
(v) Is it a metal or a non-metal ?
Periodic Table
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Answer
(i) Group Number of T is 1.
(ii) Period of T is 4.
(iii) Their is 1 valence electron present in atom T.
(iv) Valency of T is 1.
(v) It is a Metal.
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(ii) To which group and period does it belong ?
(iii) What is its valency ?
(iv) Is it a metal or a non-metal ?
(v) Is it a reducing agent or an oxidising agent ?
(vi) Give its formula with hydrogen.
Name
(a) An alkali metal in period 3 and halogen in period 2.
(b) The noble gas with 3 shells.
(c) The non-metals present in period 2 and metals in period 3.
(d) The element of period 3 with valency 4.
(e) The element in period 3 which does not form oxide.
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(i) A metal of valency one.
(ii) A solid non-metal of period 3.
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(v) An element of group 2.
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