c4 revision
- Created by: blessings
- Created on: 13-03-13 19:58
Other questions in this quiz
2. what is mass number
- the total of both numbers
- The mass number is the total number of protons and neutrons in the atom.
- the bottom number
3. what is atomic number
- The atomic number is the number of protons and number of electrons in the atom.
- top number
- the biggest number
4. what do all atoms of a particular element have
- same number of protons.
- a substance joined together chemically.
- have two compounds joined together
5. why are some atoms of a particular element called isotopes
- some elements have varieties that have different numbers of neutrons
- have unusual chemical bond
- different types of atoms
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