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Science test ch 6

Matter and Chemistry

the study of what substances are made of chemistry
anything that takes up space and has mass matter
a measure of the pull of gravity on an object weight
the amount of matter that makes up an object mass
tiny particle from which all substances are composed atom
tiny, extrememly dense core of an atom nucleus
one of the tiny particles that circle around the nucleus of an atom electron
cloudlike shield around an atom's nucleus electron cloud
particle that helps make up the nucleus of an atom neutron
positively charged particle that helps make up the nucleus of an atom proton
anything lacking an electrical charge neutral
a group of electrons in an atom that orbit at roughly the same distance of a nucleus shell
the number of protons in an atom atomic number
a substance that is composed of only one type of atom element
a substance that is composed of more than one type of atom bonded together compound
the densest of everyday metals lead
nonmetal element that at room temperature is an odorless, yellow solid sulfur
basic building block of the complex compounds found in your body and in all living organisms carbon
the very first element in the periodic table hydrogen
a silver-grey element that is the most common alkaline earth metal calcium
an important compound of sodium also known as lye or caustic soda sodium hydroxide
a nonmetal and halogen that is a purple solid at room temperature iodine
a gaseous nonmetal that is the most widely used halogen chlorine
a gaseous nonmetal and halogen with many important uses fluorine
a noble gas that replaced hydrogen as the gas with which to fill balloons because it is unreactive helium
arrangement of elements in a table periodic table of the elements
elements in top right of the periodic table that are mostly gases nonmetals
elements in the seventh column of the periodic table halogens
elements in the last column of the periodic table noble gases
tiny groups of 2 or more atoms that are blended tightly together molecule
compounds composed by charged atoms ionic compound
process in which atoms of elements or compounds are rearranged to form new substances chemical reaction
the only metal that is liquid at room temperature mercury
colorless and odorless gas that people and animals require in order to live oxygen
colorless and odorless gas that is less prone to react with other elements nitrogen
hard crystalline form of carbon that is the hardest of all known minerals diamond
Created by: kristi1019