Two elements 'A' and 'B' belong to the 3rd period of Modern periodic table and are in group 2 and 13 respectively. Compare their following characteristics in tabular form: |
(a) Number of electrons in their atoms |
(b) Size of their atoms |
(c) Their tendencies to lose electrons |
(d) The formula or their oxides |
(e) Their metallic character |
(f) The formula of their chlorides |
Answer:
A
B
(a)
Number of electrons in their atoms
4,12 & 20
5, 13 & 21
(b)
Size of their atoms
Bigger
Smaller
(c)
Their tendencies to lose electron
More
Less
(d)
The formula of their oxides
AO
\[{{B}_{2}}{{O}_{3}}\]
(e)
Their metallic character
More metallic
Less metallic
(f)
The formula of their chlorides
\[AC{{l}_{2}}\]
\[BC{{l}_{3}}\]
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