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Meaning of calcium-45 | Babel Free

Noun CEFR B2

Definitions

A radioactive isotope of calcium, ⁴⁵₂₀Ca, with 20 protons and 25 neutrons, and a half-life of 162.6 days; it is used as a tracer in studying calcium metabolism. As it decays it undergoes nuclear transmutation via electron emission, also called negative beta decay (β⁻-decay), into scandium.

uncountable

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
See all B2 English words →

See also

calcium-46 calcium-48 calcium-montmorillonite calciuresis calciuria calcivirus

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