1.

Matchthe correctatomicradiuswith theelememts . {:("Element ",,"Atomicradius (pm)"),(Be,,74),(C,,88),(O,,111),(B,,77),(N,,66):}

Answer»

Solution : As awe movefrom leftto rightin a period nuclearchargeincreasesand hencetheatomicradius decreases Thereforeatomicradiusof Be =111, B,=88, C = 77,N = 74 andO= 66 pm.


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