número atômico

phrase

By · According to Wiktionary data (CC BY-SA) ·

The verdict

“número atômico” is uncommon Portuguese (outside the top frequency list), classed as a phrase. The kind of spelling people second-guess.

Unranked
below top-frequency Portuguese
14
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - de símbolo Z, define o número de prótons do núcleo de um átomo; é único para cada elemento químico, não existindo elementos diferentes com número atômico igual

Key facts for número atômico
PropertyValue
Headwordnúmero atômico
LanguagePortuguese
Part of speechPhrase
Letters14
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “número atômico” sits in Portuguese frequency

número atômico falls outside the top-100,000 ranked Portuguese words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

número atômico is uncommon Portuguese outside the top frequency list, classed as aphrase. Rarity is why readers land here mid-draft. Gloss: "de símbolo Z, define o número de prótons do núcleo de um átomo; é único para cada elemento químico, não existindo elementos diferentes com número atômico igual".

número atômico has no tracked misspelling variants, typically a sign the spelling maps closely to how the word sounds. It is not paired with a close-neighbour confusable in our dataset, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.

This entry carries no recorded etymology, so its spelling is easiest explained by how it's pronounced rather than where it came from. The correct Portuguese form is número atômico, spelled N-Ú-M-E-R-O- -A-T-Ô-M-I-C-O.

Definition

  1. 1
    de símbolo Z, define o número de prótons do núcleo de um átomo; é único para cada elemento químico, não existindo elementos diferentes com número atômico igual

This word in other languages

número atómico(Español)numéro atomique(Français)Ordnungszahl(Deutsch)

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "número atômico"?
"número atômico" is spelled N-Ú-M-E-R-O- -A-T-Ô-M-I-C-O.
What does "número atômico" mean?
As a phrase, "número atômico" means: de símbolo Z, define o número de prótons do núcleo de um átomo; é único para cada elemento químico, não existindo elementos diferentes com número atômico igual
What language does "número atômico" come from?
"número atômico" is a Portuguese word. PlainSpell's reference spans five languages -- English, Spanish, Portuguese, French, and German -- with definitions, pronunciations, and spelling data for each.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Using “número atômico”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct Portuguese spelling is N-Ú-M-E-R-O- -A-T-Ô-M-I-C-O - every other letter order is a misspelling in standard orthography.
  • Browse more Portuguese words and confusable pairs in the same reference. Portuguese words
Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list