非 ひ共有 きょうゆう電子 でんし対 つい

hikyōyūdenshitsui

1. Not a lone pair.; Not a non-bonding electron pair.

1. Was not a lone pair of electrons.

1. Non-bonding electron pair

1. Non-bonding electron pair; Non-shared electron pair

1. It is not a lone pair of electrons.

1. Not a lone pair of electrons.; It's not a lone pair of electrons.

1. Was a lone pair of electrons.

1. Non-bonding electron pair.; Lone pair.

1. Not a lone pair of electrons.; It is not a non-bonding electron pair.

1. Was not a lone pair of electrons.

1. Probably non-bonding electron pair.

1. Was not a lone pair of electrons.

1. Wasn't a non-bonding pair of electrons.; Wasn't a lone pair of electrons.

1. Non-bonding electron pair; Lone pair

1. Was not a lone pair of electrons.

1. If/when there are no lone pair electrons.; If/when not a shared electron pair.

1. If there are no shared electron pairs; If lacking lone pairs

1. If/when non-bonding electron pairs; If/when lone pairs