Definition of Aston, Francis William in English:

Aston, Francis William

Line breaks: Fran|cis Wil|liam Aston
Pronunciation: /ˈastən
 
/
( 1877–1945), English physicist. He invented the mass spectrograph (with J. J. Thomson) and eventually discovered many of the 287 naturally occurring isotopes of non-radioactive elements. Nobel Prize for Chemistry (1922).

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the outward appearance or apparent form of something…