Last Updated：2025/11/21

(physics) A stable isotope, ⁷₃Li, having three protons and four neutrons, that makes up about 93% of natural lithium.

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lithium-7

Source Word

lithium-7

Noun

uncountable

(physics) A stable isotope, ⁷₃Li, having three protons and four neutrons, that makes up about 93% of natural lithium.

Japanese Meaning

（物理学）安定同位体であるリチウム-7。3個の陽子と4個の中性子からなり、自然界のリチウムのおよそ93％を占める。

Researchers measured the abundance of lithium-7 in ancient stars to understand early nucleosynthesis.

研究者たちは初期の核合成を理解するために、古い星における質量数7のリチウム同位体（陽子3個、中性子4個の安定同位体）の存在量を測定した。

Sense（1）

(physics) A stable isotope, ⁷₃Li, having three protons and four neutrons, that makes up about 93% of natural lithium.