The Interpretation of the Atom |
Contents
DEFLECTION OF CATHODE RAYS BY MAGNET | 5 |
SILK TASSEL ELECTRIFIED | 9 |
facing | 17 |
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Common terms and phrases
a-particle a-rays actinium active active deposit actual already appear atom atomic weight bismuth chapter charge chemical completely compounds containing corresponding course definite determined direction discovered discovery disintegration effect electric electrons elements emitted energy example exist experiments explain field four frequency give given greater Group haloes helium hydrogen important increase interesting ionisation ions isotopes known lead less light lines magnetic mass matter measured methods million mineral minute molecules nature nucleus observed obtained occur orbit ordinary original particles passing period positive possible preparation present probably properties proportion proved quantity quantum radiation radioactive radium radon range rays regards relatively represent separated shell shown single space spectrum speed ẞ-rays substances successive sufficient supposed termed theory thorium tion tube unit uranium whole X-rays y-rays