Chem. Vocab. Test Review

0.0(0) Reviews
Report Flashcard set

Spaced Repetition

Scientifically backed study method

spaced repetition


Review terms and definitions



Study with MC, T/F, and other questions


Practice Test

Take a test on your terms and definitions



37 Terms
😃 Not studied yet (37)
Physical Properties
traits that can be observed or measured without changing the composition of matter.
Chemical Propterties
how a substance will react with another substance to form new materials.
A pure substance that cannot be broken down into simpler parts.
Tiny particles in an element
Subatomic particles with a positive charge that are found within the middle center (nucleus) of an atom.
Subatomic particles without charge, also found within the nucleus of an atom.
Subatomic particles with a negative charge, found in circular pathways (orbits) around the nucleus of an atom.
Periodic Table
Used to represent all elements in existence.
Element Symbol
composed of either one or two letters of the alphabet, beginning with a capital letter, second letter as lowercase.
Atomic number
Equal to the number of protons in the nucleus of an atom of that element.
Atomic Mass
Equal to the combined mass of all the protons and neutrons.
Valence Electrons
All electrons found on the outer shell of atoms.
rows of the periodic table, al elements do not have similar chemical properties.
columns of the periodic table, all elements have similar chemical properties.
A group with a specific name. Alkali metals, alkaline metals, chalcogens, halogens, noble gases.
Alkali Metals
group 1, has 1 valence electron, soft and highly reactive metals.
Alkaline Metals
group 2, less reactive than alkali, has 2 valence electrons.
group 16, non-metals, less reactive than halogens, has 6 valence electrons.
group 17, poisonous and highly reactive non-metals, has 7 valence electrons
noble gases
group 18, very stable non-metals, unreactive, has 8 valence electrons.
non-metal gas, has 1 electron, highly reactive
shiny in appearance, malleable, ductiable
shiny in appearance, poor conductors of heat, non-malleable.
dull in appearance, poor conductors of heat, not ductile.
anything that has mass and takes up space/volume.
pure substance
a substance that is made up of the same type of particles.
a substance that is made of more than 1 element.
the simplist form of any material containing 2 or more elements.
heterogeneous mixture
a substance with particles that are not evenly distributed; individual particles can be found.
homogeneous mixture
a substance with particles that are evenly distributed; cannot be easily seperated.
chemical reaction
a movement of electrons between combining atoms that results in the formation of a new substance.
chemical formula
used to show in an element of compound, the types of atoms present, and amounts of each type of atom present.
Law of Conservation of Matter
states that in any chemical reaction, matter cannot be created nor destroyed; atoms can only be rearranged to form new compounds.
physical change
A change in shape or a change in the state of a substance.
chemical change
when new substances with new properties are formed.
when a substance reacts rapidly with oxygen, and releases energy.
when a metal reacts with oxygen from the air to form a new substance called an oxide.