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C1- Rocks
GCSE C1- Products from Rocks
Question | Answer |
---|---|
What does the Nucleus of an atom contain? | Protons and Neutrons |
The majority of the mass of an atom is concentrated where? | In the Nucleus |
How big is the nucleus compared with the whole atom? | Tiny |
What subatomic particle decides what the atom is? | Protons |
What is an element? | Something that contains only one type of atom |
What are atoms represented by? | Symbols |
What are vertical columns in the periodic table called? | Groups |
Elements in the same group have... | Similar Properties |
The reactivity of Group 1 to Group 6... | Increases |
What happens when two different elements react? | They form chemical bonds with other atoms and make compounds |
How do atoms form chemical bonds? | By giving, taking or sharing electrons (nothing to do with the nuclei of the atoms) |
What can be used to write symbol equations for reactions? | Formulas |
What is the difference between mixtures and compounds? | Mixtures can be easier seperated |
Why can mixtures be easily seperated? | There are no chemical bonds between the different atoms so they can be seperated by physical methods |