Proton - Subatomic particle that is postively charged and weighs 1 amu, Neutron - Subatomic particle that is neutral and weighs 1 amu, Electron - Subatomic particle that is negatively charged with a negligible weight, Isotopes - Defined as atoms of the same element with a different number of neutrons, Electron Configuration - The arrangement of electrons in energy levels within an atom,

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?