Atomic structure
Sub-atomic particle with a positive charge.
Proton
Number of protons and electrons in hydrogen.
1 each
The most reactive metal.
Potassium
Sodium + water -> sodium hydroxide + hydrogen
How many products?
2
Iron reacting with oxygen forms...
Rust
Sub-atomic particle with a negative charge.
Electron
Number of protons and electrons in helium.
2 each
The least reactive metal.
Gold
Magnesium + hydrochloric acid -> magnesium chloride + hydrogen
How many reactants?
2
It is smaller than an atom, like a proton or electron.
Subatomic particle
Sub-atomic particle with a neutral charge.
Neutron
Number of protons and electrons in oxygen.
8 each
This element forms rust when exposed to oxygen.
Iron
Sodium + water makes...
Sodium hydroxide and hydrogen gas
The basic unit of a chemical element.
Atom
Location of the proton.
Nucleus
Number of protons and electrons in sodium.
11 each
Please send cute monkeys (and) zebras into (hot) countries, signed Gordon.
Potassium sodium magnesium (aluminium) zinc iron (hydrogen) copper silver gold
Calcium + oxygen makes...
Calcium oxide
It is made of at least two atoms chemically combined.
Compound
Location of the electron.
Shell
Number of protons and electrons in potassium.
19 each
This metal reacts slowly with air but not with water.
Copper
Metal + acid makes...
Salt and hydrogen
It is made after a chemical reaction.
Product