What is made up of usable amounts of metallic elements? silicate

a mineral

ore

carbonate

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majorsam82

16.08.2021

Chemistry

Cathode ray tubes became the only instrument of use in the study of atoms. By comparing the deflection of a beam of cathode rays by electric and magnetic fields he obtained more robust measurements of the mass to charge ratio that confirmed his previous estimates. This became the classic means of measuring the charge and mass of the electron.

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What is made up of usable amounts of metallic elements? silicate a mineral ore carbonate