Flashcards
chem
Flashcards do conjunto (17)
- 1Atomic Numberis the number of protons in the nucleus of the atom
- 2Mass Numberis the number of Protons and Neutrons in the nucleus of the atom
- 3Isotopesare atoms of the same element with a different number of neutrons
- 4Isotopic MassIs the mass of an isotope relative to 1/12th the mas of an atom of carbon-12
- 5Relative Atomic MassThe weighted average mass of all isotopes relative to 1/12th the mass of an atom of carbon-12
- 6Relative Molecular MassIs the mass of a molecule relative to 1/12th the mass of an atom of carbon-12
- 7Relative Formula MassIs the mass of one formula unit of an ionic compound relative to 1/12th the mass of an atom of carbon-12
- 8Ionisation EnergyIs the energy needed to remove one mole of electrons from one mole of atoms in a gaseous state
- 9The MoleIs the amount of substance that contains as many particles as there are in exactly 12g of carbon-12
- 10The Ideal Gas EquationPV=nRT
- 11Empirical FormulaIs the simplest whole number ratio of atoms of each element present in a molecule
- 12Molecular FormulaIs the actual number of atoms of each element present in a molecule
- 13Metallic Bondsis the attraction between de-localised electrons in the outer shell an the positive metal ions in a lattice
- 14Ionic BondIs the electrostatic attraction between oppositely charged ions in a lattice
- 15Covalent BondIs a shared pair of electrons
- 16Co-ordinate bonda covalent bond where both electrons from the shared pair come from the same atom
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- FlashCards sobre chem, criado por Henry Burgess em 23-03-2017.
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- Henry Burgess
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