> the pure substance we observe that is made up entirely of one type of [[Atom]] - atomic number defines element, & is based on number of [[Protons]] - artificial elements (man-made), don't last very long ![[Pasted image 20260510183557.png|300]] ### Hydrogen --- - [[Hydrogen]] ### Alkali Metals --- - [[Lithium]] - [[Sodium]] - [[Potassium]] - [[Rubidium]] - [[Cesium]] - [[Francium]] ### Alkaline Earth Metals --- - [[Beryllium]] - [[Magnesium]] - [[Calcium]] - [[Strontium]] - [[Barium]] - [[Radium]] ### Transition Metals --- - [[Scandium]], [[Titanium]] - [[Vanadium]], [[Chromium]] - [[Manganese]] - [[Iron]] - [[Cobalt]] - [[Nickel]] - [[Copper]] - [[Zinc]] - [[Yttrium]] - [[Zirconium]], [[Niobium]] - [[Molybdenum]], [[Technetium]] - [[Ruthenium]], [[Rhodium]] - [[Palladium]] - [[Silver]] - [[Cadmium]] - [[Hafnium]] - [[Tantalum]], [[Tungsten]] - [[Rhenium]], [[Osmium]] - [[Iridium]] - [[Platinum]] - [[Gold]] - [[Mercury]] - [[Rutherfordium]], [[Dubnium]], [[Seaborgium]] - [[Bohrium]], [[Hassium]], [[Meitnerium]] - [[Darmstadtium]], [[Roentgenium]], [[Copernicium]] ### Lanthanides --- - [[Lanthanum]], [[Cerium]], [[Praseodymium]] - [[Neodymium]], [[Promethium]], [[Samarium]], [[Europium]] - [[Gadolinium]],. [[Terbium]], [[Dysprosium]], [[Holmium]] - [[Erbium]], [[Thulium]], [[Ytterbium]], [[Lutetium]] ### Actinides --- - [[Actinium]], [[Thorium]], [[Protactinium]] - [[Neodymium]], [[Neptunium]], [[Plutonium]], [[Americium]] - [[Curium]], [[Berkelium]], [[Californium]], [[Einsteinium]] - [[Fermium]], [[Mendelevium]], [[Nobelium]], [[Lawrencium]] ### The Boron Group --- - [[Boron]] - [[Aluminum]] - [[Gallium]], [[Indium]] - [[Thallium]], [[Nihonium]] ### The Carbon Group --- - [[Carbon]] - [[Silicon]] - [[Germanium]], [[Tin]] - [[Lead]], [[Flerovium]] ### The Nitrogen Group --- - [[Nitrogen]] - [[Phosphorus]] - [[Arsenic]], [[Antimony]] - [[Bismuth]], [[Moscovium]] ### The Oxygen Group --- - [[Oxygen]] - [[Sulfur]] - [[Selenium]], [[Tellurium]] - [[Polonium]], [[Livermorium]] ### The Halogen Group --- - [[Fluorine]] - [[Chlorine]] - [[Bromine]] - [[Iodine]], [[Astatine]], [[Tennessine]] ### Noble Gases --- - [[Helium]] - [[Nebula]] - [[Neon]], [[Argon]] - [[Krypton]], [[Xenon]] - [[Radon]], [[Oganesson]] https://www.amazon.com/Elements-Book-Visual-Encyclopedia-Periodic/dp/1465456600