Isotopes and the importance of proton numbers By garikaib|2022-09-15T12:40:17+02:00January 24th, 2023|Notes, O Level Science Notes, Ordinary Level Notes| The three isotopes of hydrogen. Image credit MediaWiki ZIMSEC O Level Combined Science Notes: Isotopes and the importance of proton numbers The electron orbits of these two elements is small and can only carry two electrons The next element in the series is lithium It comes […]Quick NetOne, Econet, And Telecel Airtime Recharge Number to recharge: Airtime amount ($): EcoCash number: Buy {{error_message}} {{error_message}} Read More Comments Off on Isotopes and the importance of proton numbers