wan Itokene
(tan nimi "ijo noka nanpa 1")
sona ijo la, wan Itokene (toki Elena: ὕδωργενής, "ijo pi mama telo"), anu kon pi mama telo li ijo noka nanpa wan. toki Lasina la, jan li kepeken sitelen lili H tawa ona. wan lili ona li lili nanpa wan, li jo e wan lon 1 taso. ona li ijo noka pi mute nanpa wan lon ale.
seli pi sona jan la, wan lili pi ijo ni li kama kulupu. jan li sitelen lili e wan lili tomo la, ona li sitelen ni: H2. ma la, ona li kon li ken seli wawa lon kon ma. kon ni en kon pi mama lon li utala lon seli li kama telo:
![{\displaystyle {2\,\mathrm {H} {\vphantom {A}}_{\smash[{t}]{2}}{}+{}\mathrm {O} {\vphantom {A}}_{\smash[{t}]{2}}{}\mathrel {\longrightarrow } {}2\,\mathrm {H} {\vphantom {A}}_{\smash[{t}]{2}}\mathrm {O} }}](https://wikimedia.org/api/rest_v1/media/math/render/svg/d4979e42bb665ad651b59baf94fc6fce589c68b4)