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19. Mai 2024 · Wasserstoff ist das Element mit der geringsten Dichte. Molekularer Wasserstoff (H 2) ist etwa 14,4-mal weniger dicht als Luft. Flüssiger Wasserstoff wiegt je nach Temperatur zwischen 77,00 und 31,26 Gramm pro Liter. [18] Sein Schmelzpunkt liegt bei 14,02 K (−259 °C), der Siedepunkt bei 21,15 K (−252 °C).
Vor 3 Tagen · Copper is a chemical element; it has symbol Cu (from Latin cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orange color.
Vor 2 Tagen · Hartlepool United. *Club domestic league appearances and goals. Kevin Mark Phillips (born 25 July 1973) is an English former professional footballer who was most recently the manager of National League club Hartlepool United . A striker, Phillips started his career with Southampton but failed to make the first team and was released.
Vor einem Tag · Kevin Wayne Durant (/ d ə ˈ r æ n t / də-RANT; born September 29, 1988), also known by his initials KD, is an American professional basketball player for the Phoenix Suns of the National Basketball Association (NBA).
Vor 2 Tagen · Silicon is a chemical element; it has symbol Si and atomic number 14. It is a hard, brittle crystalline solid with a blue-grey metallic luster, and is a tetravalent metalloid and semiconductor. It is a member of group 14 in the periodic table: carbon is above it; and germanium, tin, lead, and flerovium are below it. It is relatively unreactive.
Vor einem Tag · Wikipedia [ ˌvɪkiˈpeːdia] ( anhören ⓘ /?) ist ein gemeinnütziges Projekt zur Erstellung einer freien Enzyklopädie auf Basis des sogenannten Wiki-Prinzips . Die Inhalte der Wikipedia werden von freiwilligen Autoren erstellt und gepflegt, dafür erhalten sie keine finanzielle Entschädigung.
Vor einem Tag · e. The cosmic microwave background ( CMB or CMBR) is microwave radiation that fills all space in the observable universe. It is a remnant that provides an important source of data on the primordial universe. [1] With a standard optical telescope, the background space between stars and galaxies is almost completely dark.
