1.

29 For group 18 elements it is written that all noble gases except radon are present in atmosphere but in the table in column of atmospheric content the % of radon is given but not of neon

Answer» 29 For group 18 elements it is written that all noble gases except radon are present in atmosphere but in the table in column of atmospheric content the % of radon is given but not of neon


Discussion

No Comment Found