Flashcards
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Flashcards do conjunto (7)
- 1Know that substances are made of atoms.State that substances made of only one sort of atom are called elements.ect oxygen
- 2Know that elements are found in the periodic table and that groups contain elements with similar properties.State where metals and non-metals appear in the periodic table.The metals are on the left and the non-metals are on the right.
One non-metal, hydrogen, is often put in the middle. - 3Know the structure of an atom.At the centre of an atom is a nucleus containing protons and neutrons. Electrons are arranged around the nucleus in energy levels or shells.
- 4Know the charges on sub-atomic particles.Both protons and electrons have an electrical charge. Both have the same size of electrical charge, but the proton is positive and the electron negative. The neutron is neutral.
The electrical charge of particles
particle relative charge
proton +1
neutron 0
electron -1 - 5Use the periodic table to work out the number of each type of sub-atomic particle for a named atom..
- 6Describe electron arrangements for element up to 20..
- 7—
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- FlashCards sobre Sem título, criado por Cheshire Cat em 21-03-2016.
- Criado por
- Cheshire Cat · mar 2016
- Atualizado
- 28 jun 2016
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