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Isotope vs Null - What's the difference?

isotope | null |

As nouns the difference between isotope and null

is that isotope is while null is zero, nil; the cardinal number before einn.

isotope

Etymology 1

Coined in 1914 by British chemist Frederick Soddy from (etyl) .

Noun

(en noun)
  • (physics) Any of two or more forms of an element where the atoms have the same number of protons, but a different number of neutrons within their nuclei. As a consequence, atoms for the same isotope will have the same atomic number but a different mass number (atomic weight).
  • Derived terms
    * isotope analysis * isotope dilution * isotope geochemistry * isotope hydrology * isotope map * isotope separation * isotope shift * isotope table

    See also

    * isobar * isotone

    Etymology 2

    Possible back-formation from isotopy.

    Verb

    (isotop)
  • (topology) To define or demonstrate an isotopy of (one map with another).
  • Anagrams

    * * English back-formations ----

    null

    English

    Noun

    (en noun)
  • A non-existent or empty value or set of values.
  • Zero]] quantity of [[expression, expressions; nothing.
  • (Francis Bacon)
  • Something that has no force or meaning.
  • (computing) the ASCII or Unicode character (), represented by a zero value, that indicates no character and is sometimes used as a string terminator.
  • (computing) the attribute of an entity that has no valid value.
  • Since no date of birth was entered for the patient, his age is null .
  • One of the beads in nulled work.
  • (statistics) null hypothesis
  • Adjective

    (en adjective)
  • Having no validity, "null and void"
  • insignificant
  • * 1924 , Marcel Proust, Within a Budding Grove :
  • In proportion as we descend the social scale our snobbishness fastens on to mere nothings which are perhaps no more null than the distinctions observed by the aristocracy, but, being more obscure, more peculiar to the individual, take us more by surprise.
  • absent or non-existent
  • (mathematics) of the null set
  • (mathematics) of or comprising a value of precisely zero
  • (genetics, of a mutation) causing a complete loss of gene function, amorphic.
  • Derived terms

    * nullity

    Verb

    (en verb)
  • to nullify; to annul
  • (Milton)

    See also

    * nil ----