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chemistry vocab
Question | Answer |
---|---|
Ionic bond | a bond between a non metal and a metal. |
electronegativity | a measure of the attraction of an atom for electrons. |
periodic table | a table showing the elements. |
metal | an element which is a good conductor of heat and electricity. |
nonmetal | an element with high electronegativity and is a bad conductor of heat and electricity. |
valence electron | electron(s) on an elements last shell. |
cation ion | positively-charged ions. |
chemical bonds | is an attraction between atoms brought about by a sharing of electrons between to atoms |
anion ion | negatively-charged ions. |
covalent bond | a bond by two atoms by sharing of a pair of valence electrons. |
molecule | the smallest physical unit of an element or compound. |