Compound - a substance made up of two or more chemically combined elements., Element - A substance that cannot be broken down into any other substance by ordinary chemical means, Valence Electron - The electrons located on the outermost energy shell of an atom, Proton & Neutron - subatomic particles located in the atoms nucleus, Neutron - Neutral, potassium, K - Which element on the Periodic table will have properties most like sodium (NA)?, NaCl and Kl - Which of these bonds contain ionic bonds?, Neon - reddish-orange/10 protons/atomic mass of 20.179amu, Metalloids - the elements touching the stair step line are called, Chemical Bond - the force that holds two atoms together., covalent bond - a type of chemical bond in which electrons are shared between elements., non metals - these elements re dull, brittle and poor conductors of heat and electricity. located mainly on the right side of the table, Physical Properties - solids, good conductor of electricity, malleable, and ductile,

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