From hydrogen to Ununoctium ... The following list contains the 118 previously known chemical elements, ascending according to their atomic numbers. Also important in this context: the periodic table of the elements. Table: atomic number Chem. Element element symbol atomic mass 1 hydrogen H 1.008 2 helium he 4.002 3 lithium Li 6.94 4 beryllium Be 9.012 5 boron B 10.81 6 carbon C 12.011 7 nitrogen N 14.006 8 oxygen O 15.999 9 fluorine F 18.998 10 neon Ne 20,179 11 Sodium Na 22,989 12 Magnesium Mg 24,305 13 Aluminum Al 26,981 14 Silicon Si 28,085 15 Phosphorus P 30,973 16 Sulfur S 32,06 17 Chlorine Cl 35,45 18 Argon Ar 39,948 19 Potassium K 39,098 20 Calcium Ca 40,078 21 Scandium Sc 44,955 22 titanium Ti 47,867 23 vanadium V 50,941 24 chromium Cr 51,996 25 manganese Mn 54,938 26 iron Fe 55,885 27 cobalt Co 58,933 28 nickel Ni 58,693 29 copper Cu 63,546 30 zinc Zn 65,409 31 gallium Ga 69,723 32 germanium Ge 72,63 33 arsenic As 74,921 34 Selenium Se 78,96 35 Bromine Br 79,904 36 Krypton Kr 83,798 37 Rubidium Rb 85,467 38 Strontium Sr 87,62 39 Yttrium Y 88,905 40 Zirconium Zr 91,244 41 Niobium Nb 92,906 42 Molybdenum Mo 95,94 43 Technetium Tc 98,906 44 Ruthenium Ru 101 , 07 45 rhodium Rh 102,905 46 palladium Pd 106,42 47 Silver Ag 107.868 48 cadmium Cd 112.411 49 indium In 114.818 50 tin Sn 118.71 51 antimony Sb 121.75 52 tellurium Te 127.60 53 iodine I 126.90 54 xenon Xe 131.29 55 cesium Cs 132.90 56 Barium Ba 137,32 57 Lanthanum La 138,90 58 Ce Ce 140,11 59 Praseodymium Pr 140,90 60 Neodymium Nd 144,24 61 Promethium Pm 146,91 62 Samarium Sm 150,36 63 Europium Eu 151,96 64 Gadolinium Gd 157, 25 65 Terbium Tb 158.92 66 Dysprosium Dy 162.50 67 Holmium Ho 164.93 68 Erbium He 167.26 69 Thulium Tm 168.93 70 Ytterbium Yb 173.04 71 Lutetium Lu 174.96 72 Hafnium Hf 178.49 73 Tantalum Ta 180,94 74 Tungsten W 183,84 75 Rhenium Re 186,20 76 Osmium Os 190,23 77 Iridium Ir 192,21 78 Platinum Pt 195,08 79 Gold Au 196,96 80 Mercury Hg 200,59 81 Thallium Tl 204,38 82 Lead Pb 207,20 83 Bismuth Bi 208,98 84 Polonium Po 209,98 85 Astat At 209,987 86 Radon Rn 222,0 87 Francium Fr 223,01 88 Radium Ra 226,02 89 Actinium Ac 227,02 90 Thorium Th 232.03 91 Protactinium Pa 231.03 92 Uranium U 238.02 93 Neptunium Np 237.04 94 Plutonium Pu 244.0 6 95 Americium Am 243.06 96 Curium Cm 247.07 97 Berkelium Bk 247.0 98 Californium Cf 251.0 99 Einsteinium It 252.0 100 Fermium Fm 257.09 101 Mendelevium Md 258.0 102 Nobelium No 259.0 103 Lawrencium Lr 262,0 104 Rutherfordium Rf 261,1 105 Dubnium Db 262,11 106 Seaborgium Sg 263,11 107 Bohrium Bh 262,12 108 Hassium Hs 265,0 109 Meitnerium Mt 268,0 110 Darmstadtium Ds 281,0 111 Roentgenium Rg 280.0 112 Copernicium Cn 277.0 113 Ununtrium Uut 287.0 114 Flerovium Fl 289.0 115 Ununpentium Uup 288.0 116 Livermorium Lv 293.0 117 Ununseptium Uus 292.0 118 Ununoctium Uuo 294.0
What is an anion? Definition: Anion (ancient Greek ana = up, ion = migratory) is the term for an electrically negatively charged ion. The name is derived from the direction in which negatively charged ions move during electrolysis: up to the anode. An anion can arise from a neutrally charged atom by taking up one or more electrons.
Definition: Active Immunization (Active Vaccination) is the classic vaccine containing a vaccine containing antigens. A live vaccine (severely attenuated pathogen) or a dead vaccine (killed pathogen) is administered intramuscularly (in the muscle), subcutaneously (tissue under the skin), or as a vaccine and induces an immune response.
What is an aggregate state? Definition and explanation ... The state of aggregation describes the pressure and temperature-dependent state of a chemical substance. The three classical aggregate states solid, liquid and gaseous show physical properties which are typical for the respective state of aggregation with regard to particle movement or particle spacing.
Atomic mass, symbol and atomic number Astat is a naturally occurring element with the element symbol At and atomic number 85. In the periodic table it stands with an atomic mass of 209.987 u in the 7th main group. The chemical element discovered by Corson, MacKenzie and Segrè in 1940 is radioactive and is in a solid state of aggregation at room temperature.
Atomic mass, symbol and atomic number Americium is an artificially created element with the element symbol Am and atomic number 95. In the periodic table it belongs to the actinoids with an atomic mass of 243.061 u. The chemical element discovered by Glenn T. Seaborg in 1944 is radioactive and is in a solid state of aggregation at room temperature.
Profile: Name: Agate Other names: Agate, onyx Mineral class: oxides and hydroxides Chemical formula: SiO 2 Chemical elements: silicon, oxygen Similar minerals: / Color: multicolored (eg brown, yellow, red, black) Gloss: Glass luster crystal structure: trigonal mass density: 2.8 magnetism:?
Wanted: Name: Aquamarine Other Names: Beryll Mineral class: silicates and germanates Chemical formula: Be 3 Al 2 (SiO 3) 6 Chemical elements: beryllium, aluminum, silicon, oxygen Similar minerals: see beryl Color: white-blue Luster: glossy glass Crystal structure : hexagonal mass density: approx.
The Paleolithic ... The Paleolithic or Paleolithic describes the earliest phase of human prehistory and human development and began about 2.6 million years before Christ's birth. Scientists define the beginning of the Paleolithic Age, which also marks the first phase of the Stone Age, through the ability of man to use stones as tools for different purposes.
Structure and function of cell organelles in bacterial cells The bacterial cell belongs to the prokaryotes with the archaea. Structure of a bacterial cell Bacteria chromosome: The bacterial chromosome is a self-contained and up to 1.5mm long DNA molecule. Since bacteria have no nucleus, their DNA floats freely in the cytoplasm of the bacterial cell.
Definition: Fertilization (lat. Fertilitas = fertility) or fertilization, the union of sperm cell and egg cell is called, while consequence the zygote arises. Due to the fusion of the cell nuclei of both germ cells, the zygote now has a complete, diploid set of chromosomes, with a total of 46 chromosomes (only in humans!
Wanted: Name: Basalt Other names: / Mineral class: silicates Chemical formula:? Chemical elements: silicon, oxygen, aluminum, iron, calcium, magnesium, potassium, sodium Similar minerals: gabbro Color: gray, black Gloss: matt Crystal structure: / mass density: about 2.5 Magnetism: no Mohs hardness: approx.
Wanted: Name: Bernstein Other Names: Succinite, Amber, Electrum Mineral Class: Organic Compounds Chemical Formula: C 10 H 16 O + (H 2 S) Chemical elements: Carbon, Hydrogen, Oxygen, Sulfur Similar minerals: / color : yellow-brown, red, orange, honey yellow gloss: greasy crystal structure: amorphous mass density: approx.
Character Title: Border Collie Alternate Names: / Origin: United Kingdom FCI Group: Sheepdogs and Cattle Dogs Size (up to 55cm) Height (): up to 52cm Weight (): 14 - 20kg Weight (): 12 - 18kg Life expectancy: 12 - 15 years Nutrition: Carnivore Sexual maturity: Litter size: 6 - 8 Coat color: black-white, brown Skin type: dense Coat length: medium character / intelligent, dynamic, active, determined Attitude: no housing posture, lots of exercise Border collie - introduction information As an ancestor In the Border Collie shepherd dogs are believed to have already arrived in Great Britain with the Vikings.
Characteristics Name: Stinging nettle Latin name: Urtica Other names: Nettle Plant family: Nettle plant Number of species: approx. 30 species Distribution: worldwide Plant location: nitrogen-rich soils Blades: approx. saftgrьn; with stinging hairs fruits:? Flower color: yellow-brownish Flowering period: June - octopus Height: 1 - 3m Age: yearlong and perennially possible Usage: Medicinal plant Characteristics: improves circulation Information on the plant: stinging nettle Stinging nettles belong to the family of nettle plants and are distributed worldwide.
Atomic mass, symbol and atomic number Barium is a naturally occurring element with the elementary symbol Ba and the atomic number 56. In the periodic table it stands with an atomic mass of 137.327 u in the 7th main group. The chemical element discovered by Wilhelm Scheele in 1774 is not radioactive and is in a solid state of aggregation at room temperature.
Atomic mass, symbol and atomic number Lead is a naturally occurring element with the element symbol Pb and atomic number 82. In the periodic table it stands with an atomic mass of 207.2 u in the 4th main group. The chemical element is not radioactive and is in a solid state at room temperature.
The Bronze Age ... The Bronze Age describes a phase of early human history that began in Europe around 2300 to 2200 BC and lasted 1400 years. The name of this historical section refers to the ability to use tin and copper alloys in the manufacture of tools, weapons and many other everyday objects.
Atomic mass, symbol and atomic number Chlorine is a naturally occurring element with the elementary symbol Cl and the atomic number 17. In the periodic table it stands with an atomic mass of 35.45 u in the 7th main group. The chemical element discovered by Humphry Davy in 1808 is not radioactive and is in a gaseous state at room temperature.
Character Title: Cocker Spaniel Alternative Names: English Cocker Spaniel Original Origin: United Kingdom FCI Group: Retrievers, Flushing Dogs, Water Dogs Size (up to 40cm) Height (): up to 36cm Weight (): 11 - 14kg Weight (): 10 - 13kg Life expectancy: 10 - 15 years Nutrition: Carnivore Sexual maturity: Litter size: 4 - 6 Coat color: brown, black, red, white, tricolor Skin type: dense, shiny Coat length: long Character / character: open, friendly, loyal, playful Attitude: required A consistent education Akita - Introduction The direct ancestors of the Cocker Spaniel look back on a long history, because coin finds from the fourth century BC already show pictures of similar dogs.