Question | Answer |
The substance of witch any physical object consist or is compressed. | Matter |
having three dimensions as a geometrical body or figure. | Solid |
composed of molecules that move freely among themselves but do not tend to separate like those of gases. | Liquid |
a body of coherent matter, usually of indefinite shape and often of considerable size. | Mass |
a substances possessing perfect molecular mobility and the property of indefinite expansion, as apposed to a solid or liquid. | Gas |
a collection of written or printed sheets bound together and constituting a book. | Volume |
any property used to characterize matter and energy and their interactions. | physical property |
a property or characteristic of a substance that is observed during the reaction in witch the chemical composition or identity of the substance is changed. | 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 |
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 |
shiny, good conductors, malleable, ductility | metal |
like both metal and non-metal, shiny, malleable, semi-conductors | metalloid |
poor conductors, mostly gases, dull | non-metal |