No rule for this one
No ending or word group predicts the article of Konto. Learn it as a pair and say it out loud: das Konto.
Nouns ending in -o only take das 51.9% of the time, so that is not a rule we teach.
das Konto
It's das Konto. Konto is neuter, plural die Konten.
Ich möchte ein Konto eröffnen.
I'd like to open an account.
No ending or word group predicts the article of Konto. Learn it as a pair and say it out loud: das Konto.
Nouns ending in -o only take das 51.9% of the time, so that is not a rule we teach.