Why is it der Atomstrom?

Atomstrom is a compound noun, and German compounds take the article of their last word: der Strom. So it’s der Atomstrom.

Sense 1
der

Meaning

[1] Physics: Electric current that is obtained by nuclear fission or nuclear fusion

[1] Physik: elektrischer Strom, der durch Kernspaltung oder Kernfusion gewonnen wird

Examples

[1] "Proponents of the nuclear power see nuclear power and regenerative energies as an alternative to scarce and expensive oil" "

[1] „Befürworter des Atomstroms sehen Kernkraft und regenerative Energien als Alternative zum knappen und teuren Öl.“

Declension

1 Singular Plural
Nominativ der Atomstrom —
Genitiv des Atomstromes des Atomstroms —
Dativ dem Atomstrom dem Atomstrome —
Akkusativ den Atomstrom —

Pronunciation

Dictionary entries include material from Wiktionary. Wiktionary