CBSE Class 10 Answered
Two elements X and Y belong to group 1 and 2 respectively. in the same period compare them with respect as -
a) The number of valence electrons.
b) valency
c) metallic characters.
d) size of the atoms.
e) formulae of their oxides and chlorides.
Asked by Akshay pavecha | 11 Feb, 2014, 11:06: AM
Expert Answer
Dear Akshay
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Solution for first two queries,
- The group 1 elements are called as alkali metals while group 2 elements are called as alkaline earth metals.
- Valency: The alkali metals can have +1 oxidation state while the alkaline earth metals can have +2 oxidation state.
- The number of valence electrons in alkali metals is 1 while the number of valence electrons in alkaline earth metals are 2.
Regards
Topperlearning Team.
Topperlearning Team.
Answered by | 11 Feb, 2014, 05:37: PM
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