束そく縛ばく電でん子し

そ

く

ば

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で

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し

Meanings

1

noun

bound electron

Technical term in physics and chemistry for an electron that is attached to an atom or molecule and not free to move.

bundle, sheaf, ream

縛truss, arrest, bind

電electricity

子child, sign of the rat, 11PM-1AM

自じ由ゆう電でん子し
自由電子 (free electron) is the opposite of 束縛電子; it is not bound to an atom and can move freely, e.g., in metals.

Compound of 束縛 (そくばく, 'binding, restraint') and 電子 (でんし, 'electron').