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periodic table
Question | Answer |
---|---|
periodic table | arranges all of the known elements in order of increasing atomic number (of protons) |
metals | solid at room temperature, ones at the bottom left are most reactive, most are conductors |
non-metals | less reactive than metals, not good conductors |
metalloids | elements on both sides of the zig zag line that have properties of both metals and non-metals |
periods | located on the rows labeled 1-7 |
groups | also known as families on the periodic table are the columns labeled 1-8 |