Flashcards
Elements, Compound and Mixtures
Cards in this deck (18)
- 1AtomsTiny building blocks that make up everything.
- 2MoleculeClusters of atom. The molecules that make up pure substances such as elements and compounds are all identical. Most non- metallic elements are made up of molecules.
- 3LatticesCrystal lattices are made up of many atoms stuck together in large-grid like structure. Most metallic elements are made up of crystal lattices.
- 4CompoundsPure substances that are made up of more than one type of of atom are known as compounds.
- 5MixturesSubstances that are made up of a combination of different elements and compounds are called mixtures.
- 6Atomic NumberThe number of protons in the nucleus.
- 7Mass numberThe number of protons and neutrons .
- 8AlloyAn alloy is a metal combined with other elements. Ex, steel.
- 9Properties of a metal:1.Have a metallic shine
2. Conduct heat and electricity
3. Can be bent or hammered - 10Properties of Non-Metals:1. Tend to be not shiny or dull
2. Cannot conduct heat or electricity.
3. Break or crumble. - 11Ductileable to strech to form a wire
- 12Malleableable to hammered or bent into new shapes
- 13Brittleeasily crumbles or shtters
- 14Miscibleliquids that do not mix
- 15immiscibleLiquids that do not mix
- 16Electron Shells1st Shell: fits only 2 electrons
2nd Shell: fits only 8 electrons
3rd Shell: can fit 18, but happy with 8 electrons
4th Shell: can fit 32, but happy with 8 electrons - 17electronic configurationgives the arrangement of the electrons in the energy levels around the nucleus
- 18Valence electronsValence electrons are in the outermost shells. They decide the chemical properties of an element.
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- 8 Science Flashcards on Elements, Compound and Mixtures, created by Ziva .X on 24/03/2015.
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- Ziva .X
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