Elements of Life

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  • Elements of Life
    • amount of substance
      • relative atomic mass, Ar
      • balanced equations
      • relative molecular mass, Mr
      • amount in moles n = m/Mr
      • avogadro's constant = 6.02 x 10^23
      • percentage yield = experimental yield/ theoretical yield x 100
    • bonding
      • metallic
      • ionic
      • covalent
        • giant covalent network
        • molecular covalent
        • structure and properties
    • ionisation energy:- decreases down a group- generally increases across a period
    • the periodic table
      • s-block: groups 1 and 2- reactivity increases down each group
        • group 2 reactivity
    • acids and bases
      • concentration = moles/ volume
      • oxonium ion: H3O+
    • light and electrons
      • speed of light = wavelength x frequency
      • emission and absorption spectra
      • energy of a photon = Planck's constant x frequency
    • atomic structure: - protons and neutrons in the nucleus- electron cloud surrounds
      • nuclear fusion
      • shells, subshells and orbitals
    • mass spectrometry (elements)
      • mass spectrometry for compounds

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