defenitions
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the kinetic particle theory
the kinetic particle theory states that all matter is made up on tiny particles and they are in constant random motion
diffusion
the net movement of particles of higher concentration to region of lower concentration
what is an atom
the smartest particle that can still have chemical characteristics of an element
ion
the particle formed when an atom or a group of atoms gain or looses electrons but number of proton and neutron remain the same
isotopes
atoms of the same element that have the same proton (atomic) number but different nucleon (mass) number (diff number of neutrons)
the ionic bond
the mutual electrostatic attraction between oppositely charged ions
giant ionic crystal lattice
three dimensional structure of alternating positive and negative ions
metallic bond
the mutual electrostatic forces of attraction between positively charge ions in a mental and the ‘sea’ of delocalised electrons
allotropes
different forms of the same element with different structural arrangements of atoms
alloy
a mixture if metal with one or more other elements
acid
a substance that produces H+ ions in aqueous solutions
strength if an acid
the extent if ionisatjon of an acid when dissolved in water
sting acid
scid that completely ionises in water
weak acid
acid that only partially ionises in water
base
a metal oxide or hydroxide that contains either O2- or OH- ions