Home > Subjects > Chemistry > Level 1 > 1.5 Atomic structure and bonding > Key tips > Key tips
- Subject: Chemistry
- AS: AS90172
- Level: 1
- Credits: 3
- External
Chemistry 1.5 Describe atomic structure and bonding
Key tips
- Show all working of your calculations
- Use correct units in your answers with rounding to an appropriate number of significant figures.
- Use the language of chemistry – don't give human feelings to non-living objects. For example, do not explain the filling of an atom’s valence shell as ‘the atom getting a happy number’. Instead, say 'The atom becomes charged. Its valency number will be the number of electrons it has accepted to fill the valence shell.’
