Flashcards
Untitled
Cards in this deck (7)
- 1there are 3 parts of an atomprotons , neutrons and electrons
- 2protonspositive charge
- 3electronsnegative charge smallest part of an atom
- 4neutronspose no net charge
- 5alkali metals / group 1 trendsmelting points decrease . densities increase
- 6group 7 /the halogensthe opposite happens than in group one . the melting point increases and density decreases.
- 7noble gasesboiling points and density increases
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- Flashcards on Untitled, created by Gabriel Williams on 31/01/2018.
- Created by
- Gabriel Williams · Jan 2018
- Updated
- Jan 31, 2018
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