• Compound: two or more different elements combined together chemically
• Octet Rule: when bonding occurs, atoms tend to reach an electron arrangement with 8 electrons in the outermost energy level
• Ion: a charged atom or group of atoms
• Ionic bonding: the force of attraction between oppositely charged ions in a compound. Formed by the complete transfer of an electron from one atom to another
• molecule: a group of atoms joined together, the smallest particle of an element with can exist independently
• valency: the number of atoms of hydrogen (or any monovalent element) with which each atom of the element combines
• Transition... (More)

To carry out flame tests with salts of lithium, sodium, potassium, barium, strontium and copper.

Procedure

1. Light a bunsen burner and adjust it to obtain a blue flame.
2. Dip the wooden splint in water and add one of the salt to it so it sticks on.
3. Place the wooden splint over the flame to observe the colour of the flame.
4. After the salt has finished burning put the flame out and take note of the colour.
5. Repeat this for all the different salts.

Results

• Lithium – Deep red
• Sodium – Yellow
• Potassium – Lilac
• Barium – Green
• Strontium – Red... (More)