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Chemistry (periodic table (Group 1 alkali (have high rectivity, become…
Chemistry
periodic table
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Group 7 Halogens
come in all forms so soild,liquid and gas
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Bonding
ionic bonding
metals and non metals bond by ionic bonding.The metal losses electrons to form an ion with a full outer shell and the non metal gains an electron to form an ion with a full outer shell. Noble gasses have full outer shells so do not react.
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covalent bonding
covalent bonding happens between non metals.Electrons are shared so that each atom has a full outer shell.dot and cross diagrams are used to display this
metallic bonding
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metallic bounding is the electrostatic attraction between metal ions arranged in a latis structure with a sea of free to move around electrons around it
shape memory alloys
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shape memory alloys can return to their original shape after being bent or twisted.nitinol is a shape memory alloy made from nickel and titanium which is used in dental braces and spectale frames
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