Chemical Elements
Everything is made up of one or more elements (chemical element, abbreviated as CE). An element is a material (or substance) made entirely from one type of atom and can not be changed or broken into another substance by chemical means. Different elements have atoms of different sizes and properties. A material is made from more than one type of atom.
The atom is the smallest part of an element. At the center of an atom there are electrons having a nucleus (center) of protons and neutrons. The atomic number of an element, is the number of protons in the atom.
Chemical Elements
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| Element Name | Element Symbol | Atomic Number | Periodic Group Number | Periodic Period Number |
| Actinium | Ac | 89 | 3 | 7 |
| Aluminum | Al | 13 | 13 | 3 |
| Americium | Am | 95 | - | 7 |
| Antimony | Sb | 51 | 15 | 5 |
| Argon | Ar | 18 | 18 | 3 |
| Arsenic | As | 33 | 15 | 4 |
| Astatine | At | 85 | 17 | 6 |
| Barium | Ba | 56 | 2 | 6 |
| Berkelium | Bk | 97 | - | 7 |
| Beryllium | Be | 4 | 2 | 2 |
| Bismuth | Bi | 83 | 15 | 6 |
| Bohrium | Bh | 107 | 7 | 7 |
| Boron | B | 5 | 13 | 2 |
| Bromine | Br | 35 | 17 | 4 |
| Cadmium | Cd | 48 | 12 | 5 |
| Caesium | Cs | 55 | 1 | 6 |
| Calcium | Ca | 20 | 2 | 4 |
| Californium | Cf | 98 | - | 7 |
| Carbon | C | 6 | 14 | 2 |
| Cerium | Ce | 58 | - | 6 |
| Chlorine | Cl | 17 | 17 | 3 |
| Chromium | Cr | 24 | 6 | 4 |
| Cobalt | Co | 27 | 9 | 4 |
| Copper | Cu | 29 | 11 | 4 |
| Curium | Cm | 96 | - | 7 |
| Darmstadtium | Ds | 110 | 10 | 7 |
| Dubnium | Db | 105 | 5 | 7 |
| Dysprosium | Dy | 66 | - | 6 |
| Einsteinium | Es | 99 | - | 7 |
| Erbium | Er | 68 | - | 6 |
| Europium | Eu | 63 | - | 6 |
| Fermium | Fm | 100 | - | 7 |
| Fluorine | F | 9 | 17 | 2 |
| Francium | Fr | 87 | 1 | 7 |
| Gadolinium | Gd | 64 | - | 6 |
| Gallium | Ga | 31 | 13 | 4 |
| Germanium | Ge | 32 | 14 | 4 |
| Gold | Au | 79 | 11 | 6 |
| Hahnium | Hf | 72 | 4 | 6 |
| Hassium | Hs | 108 | 8 | 7 |
| Helium | He | 2 | 18 | 1 |
| Holmium | Ho | 67 | - | 6 |
| Hydrogen | H | 1 | 1 | 1 |
| Indium | In | 49 | 13 | 5 |
| Iodine | I | 53 | 17 | 5 |
| Iridium | Ir | 77 | 9 | 6 |
| Iron | Fe | 26 | 8 | 4 |
| Krypton | Kr | 36 | 18 | 4 |
| Lanthanum | La | 57 | 3 | 6 |
| Lawrencium | Lr | 103 | 3 | 7 |
| Lead | Pb | 82 | 14 | 6 |
| Lithium | Li | 3 | 1 | 2 |
| Lutetium | Lu | 71 | 3 | 6 |
| Magnesium | Mg | 12 | 2 | 3 |
| Manganese | Mn | 25 | 7 | 4 |
| Meitnerium | Mt | 109 | 9 | 7 |
| Mendelevium | Md | 101 | - | 7 |
| Mercury | Hg | 80 | 12 | 6 |
| Molybdenum | Mo | 42 | 6 | 5 |
| Neodymium | Nd | 60 | - | 6 |
| Neon | Ne | 10 | 18 | 2 |
| Neptunium | Np | 93 | - | 7 |
| Nickel | Ni | 28 | 10 | 4 |
| Niobium | Nb | 41 | 5 | 5 |
| Nitrogen | N | 7 | 15 | 2 |
| Nobelium | No | 102 | - | 7 |
| Osmium | Os | 76 | 8 | 6 |
| Oxygen | O | 8 | 16 | 2 |
| Palladium | Pd | 46 | 10 | 5 |
| Phosphorus | P | 15 | 15 | 3 |
| Platinum | Pt | 78 | 10 | 6 |
| Plutonium | Pu | 94 | - | 7 |
| Polonium | Po | 84 | 16 | 6 |
| Potassium | K | 19 | 1 | 4 |
| Praseodymium | Pr | 59 | - | 6 |
| Promethium | Pm | 61 | - | 6 |
| Protactinium | Pa | 91 | - | 7 |
| Radium | Ra | 88 | 2 | 7 |
| Radon | Rn | 86 | 18 | 6 |
| Rhenium | Re | 75 | 7 | 6 |
| Rhodium | Rh | 45 | 9 | 5 |
| Roentgenium | Rg | 111 | 11 | 7 |
| Rubidium | Rb | 37 | 1 | 5 |
| Ruthenium | Ru | 44 | 8 | 5 |
| Rutherfordium | Rf | 104 | 4 | 7 |
| Samarium | Sm | 62 | - | 6 |
| Scandium | Sc | 21 | 3 | 4 |
| Seaborgium | Sg | 106 | 6 | 7 |
| Selenium | Se | 34 | 16 | 4 |
| Silicon | Si | 14 | 14 | 3 |
| Silver | Ag | 47 | 11 | 5 |
| Sodium | Na | 11 | 1 | 3 |
| Strontium | Sr | 38 | 2 | 5 |
| Sulfur | S | 16 | 16 | 3 |
| Tantalum | Ta | 73 | 5 | 6 |
| Technetium | Tc | 43 | 7 | 5 |
| Tellurium | Te | 52 | 16 | 5 |
| Terbium | Tb | 65 | - | 6 |
| Thallium | Tl | 81 | 13 | 6 |
| Thorium | Th | 90 | - | 7 |
| Thulium | Tm | 69 | - | 6 |
| Tin | Sn | 50 | 14 | 5 |
| Titanium | Ti | 22 | 4 | 4 |
| Tungsten | W | 74 | 6 | 6 |
| Ununbium | Uub | 112 | 12 | 7 |
| Ununhexium | Uuh | 116 | 16 | 7 |
| Ununoctium | Uuo | 118 | 18 | 7 |
| Ununpentium | Uup | 115 | 15 | 7 |
| Ununquadium | Uuq | 114 | 14 | 7 |
| Ununseptium | Uus | 117 | 17 | 7 |
| Ununtrium | Uut | 113 | 13 | 7 |
| Uranium | U | 92 | - | 7 |
| Vanadium | V | 23 | 5 | 4 |
| Xenon | Xe | 54 | 18 | 5 |
| Ytterbium | Yb | 70 | - | 6 |
| Yttrium | Y | 39 | 3 | 5 |
| Zinc | Zn | 30 | 12 | 4 |
| Zirconium | Zr | 40 | 4 | 5 |
