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| In a typical atom, the number of protons equals the number of ____. |
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| Atoms that have the same number of protons but different number of neutrons are called ___. |
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| These are particles that have no charge. |
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| Out of the three phases of matter, this is the phase with the least amount of heat energy. |
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| Out of the three phases of matter, this is the phase that has indefinite volume and will take the shape of its container. |
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| Out of the three phases of matter, this is the phase that has definite volume but will take the shape of its container. |
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| If the atomic structure of a substance is in a neat, orderly pattern, it is said to be ____. |
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| Substances that can pass heat well (can get warm or cold quickly) are said to be good ____. |
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| The atomic number of an atom tells you how many _____ are in its nucleus. |
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| All life is based on this element. |
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| A mixture of different metals is called a(n)____. |
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| This is the only group of the Periodic Table that have all "unreactive" members. |
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| When both sides of an equation are equal, that equation is considered ____. |
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| A substance with a pH of 2 is considered a(n) ___. |
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| This substance is characterized by a bitter taste, and produces OH ions when combined with water. |
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| The number on this scale tells you how acidic or basic a substance is. |
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| NaCl is not a molecule, but a(n) ____ |
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| When a substance converts from a gas to a liquid, this is ____. |
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| When a substance converts from a gas to a solid, this is _____. |
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| Elements in the middle region of the Periodic Table belong to this group. |
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| Most elements are categorized as ____. |
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| When an ice cube melts into water, this is an example of a(n) _____ change. |
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| This type of change occurs when atoms are rearranged to form new substances. |
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| When atoms share electrons, it is known as this kind of bond. |
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| When atoms give or take electrons, it is known as this kind of bond. |
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| O2 is not only an example of an element, but is also a(n) _______. |
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| Non-metals are _____, which means they are breakable. |
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| Metals are _____, which means they are bendable. |
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| The number of electrons on the outermost ring. |
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| The "ingredients" of a chemical reaction; the substances on the left side of a chemical equation |
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