Question | Answer |
Anything that has mass and takes up space. | MATTER |
The amount of matter in something. | MASS |
The amount of space something occupies. | VOLUME |
A solid is when the particles are close together. | SOLID |
A liquid is when the particles are close together but are not in fixed positions. | LIQUID |
A gas is when the particles are spread out and move freely. | GAS |
A property that can be observed without changing the identity of the substance. | PHYSICAL PROPERTY |
A property that can only be observed by changing the identity of the substance. | CHEMICAL PROPERTY |
Smallest unit of matter. | ATOM |
number of protons in an atom of a given element. | ATOMIC NUMBER |
number of protons plus the number of neutrons in an atom. | ATOMIC MASS |
center of the atom that has the protons and neutrons (heaviest part of the atom). | NUCLEUS |
positive subatomic particle in the nucleus. | PROTON |
neutral subatomic particle in the nucleus. | NEUTRON |
negative subatomic particle that is around the outside of the nucleus. | ELECTRON |
ability to be flattened into a sheet; bendable | MALLEABILITY |
ability to be stretched into a wire | DUCTILITY |
ability to react with another substance | REACTIVITY |
shiny, good conductors, malleable, ductility | METAL |
like both metal and non-metal, shiny, malleable, semi-conductors | MATALLOID |
poor conductors, mostly gases, dull | NON-METAL |
horizontal rows on periodic table | PERIOD |
vertical columns on periodic table | GROUPS |
temperature where solid turns to liquid | MELTING POINT |
temperature where liquid turns to gas | BOILING POINT |