I was reading a text, describing the following disintegration:(adsbygoogle = window.adsbygoogle || []).push({});

[itex]^{234}_{90}Th\xrightarrow{}~^{0}_{-1}e+~^{234}_{91}Pa[/itex]

However, I prefer to understand it as,

[tex]^{234}_{90}Th\xrightarrow{}~e^{-}+~^{234}_{91}Pa[/tex]

Of course, the above two equations are missing out the antineutrino. Could someone please enlighten me why,

[tex]e^{-}\equiv~^{0}_{-1}e[/tex]

Am I supposed to read it as, p+n =0 but it contains a 'negative' proton number, i.e. a negative proton = an electron (although an electron has a mass of 1/1840 of that of a proton)

Cheers,

Mike.

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