1. Hydrogen zog Hydrogen yog dab tsi, tus naj npawb ib lub caij nyob rau hauv lub sij hawm lub sij hawm, muaj tsawg tshaj plaws ntawm cov protons, tsuas yog ib tug. Lub atom hydrogen kuj yog qhov tsawg tshaj plaws thiab lub teeb tshaj plaws ntawm tag nrho cov atoms. Hydrogen tshwm sim hauv ntiaj teb feem ntau hauv nws daim ntawv sib xyaw, qhov tseem ceeb tshaj plaws ntawm cov dej, uas yog ...
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