4.
将下列物质进行分类:\(\rm{①}\) \(\rm{{\,\!}^{16}}\)\(\rm{O}\) 和 \(\rm{{\,\!}^{18}}\)\(\rm{O}\) \(\rm{② C}\)\(\rm{{\,\!}_{60}}\) 与\(\rm{C}\)\(\rm{{\,\!}_{70}}\) \(\rm{③ H}\)\(\rm{{\,\!}_{2}}\)\(\rm{O}\)与 \(\rm{D}\)\(\rm{{\,\!}_{2}}\)\(\rm{O}\) \(\rm{④ CH}\)\(\rm{{\,\!}_{3}}\)\(\rm{CH}\)\(\rm{{\,\!}_{2}}\)\(\rm{CH}\)\(\rm{{\,\!}_{2}}\)\(\rm{CH}\)\(\rm{{\,\!}_{3}}\)与\(\rm{CH}\)\(\rm{{\,\!}_{3}}\)\(\rm{CH(CH}\)\(\rm{{\,\!}_{3}}\)\(\rm{)}\)\(\rm{{\,\!}_{2}}\)\(\rm{⑤ CH}\)\(\rm{{\,\!}_{3}}\)\(\rm{CH}\)\(\rm{{\,\!}_{2}}\)\(\rm{CH}\)\(\rm{{\,\!}_{2}}\)\(\rm{CH}\)\(\rm{{\,\!}_{2}}\)\(\rm{CH}\)\(\rm{{\,\!}_{3}}\) 与\(\rm{CH}\)\(\rm{{\,\!}_{3}}\)\(\rm{CH}\)\(\rm{{\,\!}_{2}}\)\(\rm{CH}\)\(\rm{{\,\!}_{2}}\)\(\rm{CH}\)\(\rm{{\,\!}_{3}}\) \(\rm{(}\)填编号\(\rm{)}\);
\(\rm{(1)}\)互为同位素的是 __________________
\(\rm{(2)}\)互为同系物的是 ____________
\(\rm{(3)}\)互为同分异构体的是______________ \(\rm{(4)}\)互为同素异形体的是______________。