Set: Chemistry: Atoms, Bonds and Groups

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All 10 Terms

Term Definition
Isotopes Atoms of the same elements with a different number of neutrons (and thus a different mass number)
Relative Isotopic Mass The mass of an atom/isotope of an element compared to 1/12 of a Carbon-12 atom
Relative Atomic Mass The weighted mean mass of an atom of the element compared to 1/12 of a Carbon-12 atom
Relative Molecular Mass The weighted mean mass of a molecule compared to 1/12 of the mass of a Carbon-12 atom
Relative Formula Mass The weighted mean mass of a formula unit compared to 1/12 of the mass of a carbon-12 atom
Amount of Substance Quantity used to count atoms
Mole The unit for Amount of Substance
Avogadro constant The number of particles per mole
Concentrated A large mass of the dissolves substance compared to the volume of the liquid the substance is dissolved in
Dilute A small mass of the dissolves substance compared to the volume of the liquid the substance is dissolved in

Set Information

Terms 10
Creator Robbie10538
Created October 28, 2008
Groups None
Subject chemistry
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Description

For the new 2008 OCR specification. Module 1

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Most Missed Words

  1. Relative Molecular Mass → The weighted mean mass of a molecule compared to 1/12 of the mass of a Carbon-12 atom - 1 miss
  2. Relative Formula Mass → The weighted mean mass of a formula unit compared to 1/12 of the mass of a carbon-12 atom - 1 miss
  3. Isotopes → Atoms of the same elements with a different number of neutrons (and thus a different mass number) - 1 miss
  4. Amount of Substance → Quantity used to count atoms - 1 miss
  5. Relative Atomic Mass → The weighted mean mass of an atom of the element compared to 1/12 of a Carbon-12 atom - 1 miss
  6. Relative Isotopic Mass → The mass of an atom/isotope of an element compared to 1/12 of a Carbon-12 atom - 1 miss
  7. Concentrated → A large mass of the dissolves substance compared to the volume of the liquid the substance is dissolved in - 1 miss