Chemistry

Chemistry element - CORRECT ANSWER-substance that CANNOT be chemically broken down into simpler substances atom - CORRECT ANSWER-smallest part of an element that can be identified as that element nucleus - CORRECT ANSWER-center, or core, of an atom (where the protons and neutrons are located) proton - CORRECT ANSWER-particle that has a positive charge - located in the nucleus of an atom. You can figure out the number of protons by looking at the atomic number of an element. neutron - CORRECT ANSWER-particle that has no charge - located in the nucleus of an atom. You can figure out the number of neutrons by SUBTRACTING the atomic Mass minus the atomic number. electron - CORRECT ANSWER-particle that has a negative charge - located in rings outside the nucleus of an atom. You can figure out the number of electrons by looking at the atomic number of an element. atomic number - CORRECT ANSWER-number of protons in the nucleus of an atom. This is the same number as the number of electrons atomic mass - CORRECT ANSWER-total mass of the protons and neutrons in an atom energy level - CORRECT ANSWER-place in an electron cloud where an electron is most likely to be found - rings. Remember, 2-8-18-32. metal - CORRECT ANSWER-element that has the property of shiny luster, ductility, and malleability luster - CORRECT ANSWER-the way a material reflects light malleable - CORRECT ANSWER-able to be hammered into different shapes ductile - CORRECT ANSWER-able to be drawn into thin wires nonmetal - CORRECT ANSWER-element that lacks most of the properties of a metal, is not shiny, does not conduct electricity or heat well, is not malleable so it is called brittle or breakable. halogens - CORRECT ANSWER-elements that make up Group 17 in the periodic table noble gases - CORRECT ANSWER-elements that make up Group 18 in the periodic table matter - CORRECT ANSWER-anything that has mass and takes up space properties - CORRECT ANSWER-characteristics used to describe an object state of matter - CORRECT ANSWER-any of the four physical forms of matter solid - CORRECT ANSWER-state of matter with a definite shape and volume liquid - CORRECT ANSWER-state of matter with a definite volume but no definite shape gas - CORRECT ANSWER-state of matter that has no definite shape or volume plasma - CORRECT ANSWER-state of matter made up of electrically charged particles - needs high temperatures and high pressure chemical formula - CORRECT ANSWER-way of writing the name of a compound using chemical symbols subscript - CORRECT ANSWER-number written to the lower right of a chemical symbol in a chemical formula chemical equation - CORRECT ANSWER-statement in which chemical formulas are used to describe a chemical reaction