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Matter
Physical and Chemical Properties
Question | Answer |
---|---|
Matter | Anything that takes up space and has mass. |
Mass | A measure of the amount of matter contained in a physical body. |
Volume | The space that something takes up. |
Solid | Particles close together. |
Liquid | Particles still close together but not in fixed positions. |
Gas | Particles spread out |
Physical Property | A property that can be observed without changing the identity of the substance. |
Chemical Property | A property that can only be observed by changing the identity of the substance. |
Atom | Smallest unit of matter |
Atomic Number | Number of protons in an atom of a given element |
Atomic Mass | Number of protons plus the number of neutrons in an atom |
NUCLEUS | center of the atom that has the protons and neutrons (heaviest part of the atom) |
PROTON | positive subatomic particle in the nucleus |
NEUTRON | neutral subatomic particle in the nucleus |
ELECTRON | negative subatomic particle that is around the outside of the nucleus |
malleability | ability to be flattened into a sheet; bendable |
ductility | ability to be stretched into a wire |
reactivity | ability to react with another substance |
malleability | ability to be flattened into a sheet; bendable |
ductility | ability to be stretched into a wire |
reactivity | ability to react with another substance |
period | horizontal rows on periodic table |
groups | vertical columns on periodic table |
melting point | temperature where solid turns to liquid |
boiling point | temperature where liquid turns to gas |
metal | shiny, good conductors, malleable, ductility |
metalloid | like both metal and non-metal, shiny, malleable, semi-conductors |
non-metal | poor conductors, mostly gases, dull |