Atoms
Atoms: electrically neutral
Anion: negatively charged (addition of electrons)
Cation: positively charged (removal of electrons)
Isotope: atoms with equal numbers of protons and electrons but different numbers of neutrons.
© University of the Highlands & Islands
© University of the Highlands & Islands
Carbon atom: Normally 6 protons and 6 neutrons in its core (atom number 12, 12C).
- approx. 1% have an extra neutron (13C)
- an even smaller amount have two extra neutrons (14C)
- 14C is unstable, radioactive and decay with a half-life of 5730 years.
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This resource was developed as part of an Erasmus+ project, funded with support from the European Commission under grant agreement 2016-1-SE01-KA203-22064.
The project was a collaboration between:
- The University of Borås, Sweden
- The University of the Highlands and Islands, Scotland
- The University of Alcalá, Spain
- Digital Connections, Scotland
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