Atomic Structure
This subatomic particle has a positive charge.
Proton
Elements in Group 1 are called these.
Alkali Metals
An acid produces these ions in aqueous solution.
Hydrogen Ions (H⁺)
Increasing this makes particles move faster.
Temperature
This type of reaction involves gaining oxygen.
Oxidation
This number tells you how many protons are in an atom.
Atomic Number
This group contains very unreactive elements.
Noble Gases
This indicator turns red in acids.
Litmus
Using a catalyst does this to activation energy.
Lower
This type of reaction involves losing oxygen.
Reduction
This subatomic particle contributes to the mass but has no charge.
Neutron
Elements in the same group have the same number of these.
Outer Shell Electrons
This reaction occurs between an acid and a base.
Neutralisation
Smaller solid pieces increase this factor.
Surface Area
A reaction that can go forward and backward is called this.
Reversible Reaction
Electrons are found in these energy levels around the nucleus.
Electron Shells
This trend increases as you go down Group 1.
Reactivity
Acid + metal → salt + this gas
Hydrogen
This theory explains how reactions occur when particles collide.
Collision Theory
This law states mass is conserved in reactions.
Law of Conservation of Mass
The total number of protons and neutrons in an atom.
Mass Number
This type of element is found on the right side of the Periodic Table.
Non-Metals
This salt is made when sulfuric acid reacts with a base.
Sulfate
This graph shows how quickly reactants are used up over time.
Rate of Reaction Graph
This symbol shows a reaction has reached equilibrium.
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