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Chemistry Flashcards
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- 1Atom proton +1 nucleus neutron 0 nucleus electron -1 orbit
- 2Elementmade up of one type of atom
He helium - 3Compounda molecule made up of atoms of 2 or more different elements
H20 water - 4Mixture2 or more atoms/molecules mixed together but not chemically bonded
- 5Atomssmallest amount of a substance that we can have that will still retain all the features of that substance
- 6Molecules2 or more atoms joined together through attractive forces known as bonds
the atoms may be of the same or different elements - 7Atomic structurenumber of protons in an atom of an element = atomic number
protons + neutrons in an atom = mass number
protons = electrons - 8Ionic bonding
- 9Covalent bonding
- 10Metalsmetals come from the earth's crust
some metals are very unreactive and are found as elements in their native state
metals like zinc, iron, lead are found combined with oxygen in compounds
these metals can be extracted using chemical reactions - 11Metal oresoxidation
reduction
electrolysis
displacement - 12Blast furnace
- 13Electrolysis
- 14Alkane formula
- 15Alkanes
- 16Properties of alkaneslarger alkane molecule:
less volatile
higher bioling point
less flammable
higher viscosity
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- GCSE (Chemistry) German Fichas sobre Chemistry Flashcards, creado por katiehumphrey el 23/05/2013.
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