Question | Answer |
who created the first periodic table | Mendeleev |
what does each square on the periodic table include | atomic number, chemical symbol, element name, and atomic mass |
how many groups in the periodic table | 18 |
how many periods in the periodic table | 7 |
what can be predicted of an element by its placement on the periodic table | properties |
to what side of the zig zagged line are metals found on the periodic table | left |
what tends to decrease as you move left to right across the periodic table | reactivity |
how many nonmetals are there | 17 |
to what side of the zig zagged line are nonmetals found on the periodic table | right |
what are some characteristics of nonmetals | dull, brittle, and poor conductors |
how many metalloids are there | 7 |
what are some characteristics of metals | shiny, ductile, malleable, good conductors |
what state of matter are nonmetals usually at room temp | gas |
what state of matter are metals usually at room temp | solid |
what is the only metal that is not solid at room temp | mercury |