Q. 293.7( 3 Votes )

Write four characteristic properties of p-block elements.

Answer :

1. They show variable oxidation states. The reducing character increases down the group and oxidising character increases along the period.

2. They have a high ionisation enthalpy than the s-block elements.

3. They usually form covalent compounds.

4. Both metals and non metals are found in this group, but non metals are slightly more in number. As we go along the period non metal character increases and down the group metallic character increases.

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PREVIOUSAmong the elements B, Al, C and Si,(i) which element has the highest first ionisation enthalpy?(ii) which element has the most metallic character? Justify your answer in each case.NEXTChoose the correct order of atomic radii of fluorine and neon (in pm) out of the options given below and justify your answer.(i) 72, 160(ii) 160, 160(iii) 72, 72(iv) 160, 72

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