plz....Tell me this question answer immediately....
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So easy questions.
1.For finding elements belonging same group, you just have to chek which elements have identical electronic configuration in their outermost shell. A and D have ns2 np5 configuration. So they belong to same group.
2.As B has configuration ns1, it is an alkali metal. Alkali metals have lowrst ionization enthalpy.
3.Again, those arealkali metals which exhibit only +1 oxidation state. so answer is B.
4. C has 6 electrons. So C^+4 will have 2 electrons.
so configuration is 1s^2.
That's it!
Hope this helps!
1.For finding elements belonging same group, you just have to chek which elements have identical electronic configuration in their outermost shell. A and D have ns2 np5 configuration. So they belong to same group.
2.As B has configuration ns1, it is an alkali metal. Alkali metals have lowrst ionization enthalpy.
3.Again, those arealkali metals which exhibit only +1 oxidation state. so answer is B.
4. C has 6 electrons. So C^+4 will have 2 electrons.
so configuration is 1s^2.
That's it!
Hope this helps!
FathimaS:
yes
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