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Meaning of calcium-40 | Babel Free

Noun CEFR B2

Definitions

The major stable isotope of calcium, ⁴⁰₂₀Ca, with 20 protons and 20 neutrons; it amounts to almost 97% of natural calcium.

uncountable

CEFR level

B2

Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.

See also

calcium-42 calcium-43 calcium-44 calcium-45 calcium-46 calcium-48