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| Rocks made of two or more compounds are called what? |
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| What is an example of an alloy? |
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| What is a solution in which one solid substance is uniformly dispersedi n another solid substance? |
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| The number of what is shown in a compound's chemical formula? |
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| How many atoms of oxygen, hydrogen, and sulfur are represented by the formula H2SO4 |
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| What is the total nubmer of atoms in a molecule of C3H4O3? |
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| How many atoms of Oxygen, Sodium, and Carbon are represented by the formula K2SO4? |
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| How many atoms are in the formula Na2C2O4? |
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| What is shared between atoms in a covalent bond? |
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Term
| In a covalent bond, the nucleus of each atom is attracted to what? |
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| An atom that is chemically unreactive is most likely to have how many electrons? |
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| What are arranged in energy levels within an atom? |
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| What is a diatomic molecule? |
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| What is the maximum number of electrons an element with two energy levels can have? |
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| Which of the following substances would have the most tightly packd atoms at room temperature? Solid,liquid, or gas |
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| The isotope of an element have a different number of what? |
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| What is the atomic number of an atom with 11 protons, 12 neutrons, and 11 electrons? |
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| What is the mass number of an atom with 4 protons, 5 neutrons, and an atomic number of 3 have? |
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| An atom that contains 3 protons, 4 neutrons, and 3 electrons has atomic number of what? |
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| How many electrons must an atom with 3 protons, 4 neutrons, and an atomic number of 3 have? |
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| Atoms with an atomic number of 8 must have how many protons? |
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| Which of the following always has a negative charge? Proton, neutron, or electron |
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| Where are protons and neutrons of an atom located? |
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| What is the region at the center of the atoms is called what? |
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| What sub atomic particle has no positive or negative charge? |
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| What are subatomic particles? |
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| Different elements are made up of different kinds of what? |
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| The smallest unit of an element that has all the basic properties of the element is called what? |
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| Each element consists of one basic kind of what? |
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| A substance that is formed from atoms with a characteristic set of physical and chemical properties is called what? |
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| Approximately how many elements occur naturally in the earth? |
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| When heated, do particles move faster? |
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| Atoms of the same elements contain the same number of what? |
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| Can an atom of an element have a different number of protons? |
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| What is the center of the atom called? |
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