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10 Cards in this Set
- Front
- Back
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____ are the basic building blocks of all matter.
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Atoms
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Atoms are composed of even smaller particles, called ________ particles.
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Subatomic Particles
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The ____ of an atom is composed of protons and neutrons, which are bound together by strong forces.
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The nucleus
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Protons have a ____ electrical charge, while neurons have ____ electrical charge
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Protons = positive electrical charge.
Neurons = no electrical charge. |
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A ____ is a group of two or more atoms held together by mutually shared electrons.
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Molecule
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This is the smallest form of substance that can exist yet still retain the original properties of that substance.
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A molecule
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Atoms can be represented as spheres of various sizes, and the more electrons the atom contains, the ____ the sphere.
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The larger the sphere
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The covalent bonds in a water molecule are due to:
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The sharing of electrons between oxygen and each hydrogen atom.
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A water molecule has bend in its geometry, with the two hydrogen atoms on the same side of the oxygen atom. This property gives water its ____ and ability to ______.
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Polarity; the ability to form hydrogen bonds.
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In water, the positively charged hydrogen area of one water molecule interacts with the negatively charged oxygen end of an adjacent water molecule, forming a ____ bond.
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Hydrogen
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