Chemistry Chapter 1

?
View mindmap
  • Chemistry Chapter 1
    • States of matter
      • solids
        • Particles do not vibrate and in fixed arrangement
      • Liquids
        • Particles close together and random arrangement
      • Gas
        • Particles can move around and in random arrangement, the higher the temp. the more they move (increases pressure)
      • Melting and boiling absorb energy, freezing and condensing loose energy
    • Evidence for particles
      • Diffusion
        • Bromine vapour in air  - full tube becomes orange
        • Potassium manganite crystals in water  - purple colour spreads through water
        • Diffusion takes place faster in a gas than a liquid
        • ammonia and hydrogen chloride =ammonium chloride  - ring of smoke seen in the middle of tube
    • Atomic Structure
      • Atoms with the same number of electrons in their outer shell, react similarly
      • Proton = +1 charge - mass = 1       Neutron = 0 charge - mass = 1      Electron = -1 - mass = very small
      • Isotopes have different numbers of neutrons with identical chemical properties but different physical properties

Comments

No comments have yet been made

Similar resources:

See all resources »