The
number of protons in an atom is called its atomic
number (Z). This number is very important because it is
unique for atoms of a given element. All atoms of an element have the same number of protons, and every element has a different number of protons in its atoms.
Me: I can
name all the elements by proton
number: hydrogen helium lithium beryllium boron
carbon nitrogen oxygen fluorine
neon sodium magnesium aluminum silicon phosphorus sulphur chlorine argon
potassium calcium scandium titanium vanadium chromium manganese iron cobalt
nickel copper zinc gallium germanium arsenic selenium bromine krypton rubidium strontium yttrium zirconium niobium molybdenum technetium ruthenium rhodium palladium
silver cadmium indium tin antimony tellurium iodine xenon cesium barium lanthanum cerium praseodymium neodymium promethium samarium europium gadolinium terbium dysprosium holmium erbium thulium ytterbium lutetium hafnium tantalum tungsten rhenium osmium iridium platinum gold mercury thallium lead bismuth polonium astatine radon francium radium actinium thorium protactinium uranium neptunium plutonium americium curium berkelium californium einsteinium fermium mendelevium nobelium lawrencium rutherfordium dubnium seaborgium bohrium hassium meitnerium darmstadtium roentgenium copernicium nihonium flerovium moscovium livermorium tennessine oganesson.
Tom: Yes, that’s great.
Me: And now on to the symbols: HHeLiBeBCNOFNeNaMgAlSiPSClArKCaScTiVCrMnFeCoNiCuZnGaGeAsSeBrKrRbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXecsBaLaCePrNdPmS,EuGdTbDyHoErTmYbLuHfTaWReOsIrPtAuHgTlPbBiPoAtRnFrRaAcThPaUNpPuAmCmBkCfEsFmMdNoLrRfDbSgBhHsMtDsRgCnNhFlMcLvTsOg.
Tom:
Hey, now it looks
like an equation!