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Definition 2024

See also: atomic-number

atomic number ‎(plural atomic numbers)

(physics, chemistry) The number, equal to the number of protons in an atom that determines its chemical properties. Symbol: Z

number of protons

Macedonian: атомски број m ‎(átomski broj)
Maori: tau karihi
Polish: liczba atomowa (pl) f
Portuguese: número atômico (pt), número atómico (pt)
Romanian: număr atomic (ro) n, număr de ordine atomic n, număr de protoni
Russian: а́томное число́ n ‎(átomnoje čisló), а́томный но́мер (ru) m ‎(átomnyj nómer), заря́довое число́ c ‎(zarjádovoje čisló) (а́томного ядра́), поря́дковый но́мер (ru) m ‎(porjádkovyj nómer) (хими́ческого элеме́нта)
Slovak: atómové číslo n, protónové číslo n
Spanish: número atómico (es)
Swedish: atomnummer (sv) n
Telugu: పరమాణు సంఖ్య (te) ‎(paramāṇu saṃkhya)
Turkish: atom numarası (tr)
Vietnamese: số nguyên tử
Võro: aadomarv
Welsh: rhif atomig (cy) m