BSC 181 Quiz: Chapter two

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13 Feb 2017
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What is matter: anything that takes up space, atoms- are the smallest unit of matter that can be measured. They are the building blocks for an element. Elements, what are they: they can not be broken down, have unique properties both chemical and physical. Now back to atoms- atoms are made of subatomic particles: protons- have a + charge and are in the nucleus. Neutrons have no charge and are also found in the nucleus. Both create the mass of the atom: electrons. Have a charge and are in the electron cloud: mass of the atom. Electrons mass= 1/2000 the mass of proton. The 3 types of mixtures: 1. Are made of a solvent and solute. Most are true solutions: contain a gas, liquid, or solid dissolved in water: 2. Solute particles do not settle out: 3. Large solutes tend to settle out (go to bottom of top: chemical bonding. Can have seven electron shells around the nucleus.

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