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Chemistry

Horizontales
The vertical columns on the periodic table that help us determine the reactivity of elements
The horizontal rows on the periodic table
A pure substance made of 2 or more elements chemically combined
A particle made of 2 or more atoms bonded together
Study of properties of matter and how they interact
A bond where an element gives up electrons and another element accepts electrons (usually between metals and non-metals)
The "bigger number" we use balancing equations that says how many MOLECULES of the compounds are involved in forming the reaction
A mixture in which particles are unevenly distributed and still visible
Negative subatomic particle
The "little number" after an element in a compound that tells us how many of the atoms of that element are present in that compound
The compounds that interact to form the products of a reaction
Atom's center-contains protons + neutrons
The group of gases that are the most NON-REACTIVE
Positive subatomic particle
Verticales
Outermost electron shell-determines reactivity
Atomic ______ identifies an element and is equal to the number of protons in its nucleus
The compounds that are produced from a reaction
2 or more substances mixed together but not chemically combined (usually easily separated)
Salt
A mixture in which particles are evenly distributed and not visible
Equal to the number of protons AND neutrons in an element's atoms
A shared electron bond between elements (usually combining non-metals)
Pure substance that cannot be broken down into another substance chemically or physically
Has mass and occupies volume
A substance that dissolves another substance
Neutral subatomic particle
Part of a solution present in lesser amounts and dissolved by the solvent