Assertion and reasoning: Periodic classification of elements.

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எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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Answer the following questions using the data given below:

1.

Assertion:	Group \(1\) (1s) elements are known as the alkali elements.
Reason:	s-orbital can accommodate only two electrons.

Assertion:	Elements in the same vertical column have similar properties.
Reason:	Elements have periodic dependence upon the atomic number.

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11. Assertion and reasoning: Periodic classification of elements.