Atoms and Elements
- Created by: Gemma
- Created on: 08-12-12 17:16
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- Atoms and Elements
- Electronic Structure
- Up to 2 electrons in the 1st shell
- Up to 8 electrons in other shells
- The group number of an element is the number of electrons in its outermost shell
- Charges of atoms
- Overall atoms are neutral
- Electrons are negatively charged -1
- Protons are positively charged +1
- Neutrons have no charge 0
- Atoms that gain or loose electrons through ionic bonding become charged and are now called ions.
- Elements
- Elements only consist of one type of atom
- There are around 100 different elements in the periodic table
- Electronic Structure
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