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S vs Radioactivity - What's the difference?

s | radioactivity |

As a letter s

is the letter s with a.

As a noun radioactivity is

spontaneous emission of ionizing radiation as a consequence of a nuclear reaction, or directly from the breakdown of an unstable nucleus.

s

Translingual

{{Basic Latin character info, previous=r, next=t, image= (wikipedia s)

Letter

  • The nineteenth letter of the .

    • Symbol

    (wikipedia) (mul-symbol)
  • voiceless alveolar fricative
  • Symbol for second , an SI unit of measurement of time.

    • See also

    (Latn-script) * * (esh) * (dze) * {{Letter , page=S , NATO=Sierra , Morse=ยทยทยท , Character=S , Braille=? }} Image:Latin S.png, Capital and lowercase versions of S , in normal and italic type Image:Fraktur letter S.png, Uppercase and lowercase S in Fraktur Symbols for SI units ----

    radioactivity

    English

    Noun

    (radioactivities)
  • Spontaneous emission of ionizing radiation as a consequence of a nuclear reaction, or directly from the breakdown of an unstable nucleus.
  • The radiation so emitted; including gamma rays, alpha particles, neutrons, electrons, positrons, etc.

    • Related terms

    * radiation

    See also

    * half-life

    External links

    * (Radioactive decay)