Proton - positive charge, located in nucleus, Neutron - neutral charge, located in nucleus, Electron - negative charge, surround nucleus, Atomic number - number of protons, Atomic Mass - number of neutrons and protons, Isotopes - elements that have a differing number of neutrons, Ion - elements that have different number of electrons and protons, Covalent Bond - Bonds formed by sharing electrons, Ionic Bond - Positive and negative atoms attract each to each other and bond, Valence Electrons - number of electrons in an atom's outer shell, Electron Shell 1st - 2 electrons, Electron Shell 2nd & 3rd - 8 electrons, Half-life - Amount of time rquired for half of a radio active isotope to decay to its stable end product, Cation - Atom that has lost electron(s), positive charge , Anion - Atom that has gained electron(s), negative charge, Alpha Particle - helium nucleus given off by a radioactive element, Beta Particle - high speed electrons given off by a radioactive element, Gamma Particle - harmful gamma rays given off by a radioactive element, Filled Outer Electron Shell - Stable and nonreactive elements, Unfilled Outer Electron Shell - Unstable and reactive elements,

排行榜

视觉风格

选项

切换模板

恢复自动保存: