6. The minimum energy required to remove one mole of electrons from one mole of atoms in a gaseous state.
Kinetic Energy
First Ionization Engergy
Electronegativity
7. The tendency of an atom in a molecule to attract a shared pair of electrons towards itself.
Electron Affinity
Electronegativity
First Ionization Energy
8. The minimum energy required for a chemical reaction to take place.
Activation Energy
Catalyst
First Ionization Energy
9. The average mass of a molecule, calculated by adding the relative atomic masses of the constituent atoms
Relative Molecular Mass
Relative Atomic Mass
Atomic Number
10. Measurements that have small random errors.
Accuracy
Precision
Anomaly
11. Acid is an electron-pair acceptor
Strong Acid
Lewis Acid
Bronsted-Lowry Acid
12. Measurements that have small systematic errors.
Precision
Accuracy
Outlier
13. A reaction that absorbs heat from the surroundings as a result of forming products with weaker bonds than the reactants.
Standard Enthalpy of Reaction
Endothermic Reaction
Exothermic Reaction
14. The liquid that dissolves another substance or substances to form a solution
Solute
Solvent
Solution
15. Accept electrons and become reduced.
Reduction
Oxidising Agent
Oxidised Reactants
16. An emission spectrum that only has certain frequencies of light. It is produced by excited atoms and ions as they fall back to a lower energy level
Line Spectrum (Discontinuous Spectrum)
First Ionization Energy
Electronegativity
17. The simplest whole number ratio of the atoms a compound contains.
Empirical Formula
Molecular Formula
18. Acid is a proton donor
Bronsted-Lowry Acid
Lewis Acid
Strong Acid
19. The sum of the protons and neutrons in the atom's nucleus
Mass Number
Atomic Number
Isotopes
20. A reaction that releases heat to the surroundings as a result of forming products with stronger bonds than the reactants.
