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Label the protons, neutrons, and electrons:[image] |
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Protons have a _________ charge. |
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Neutrons have ________ charge. |
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Electrons have a __________
charge. |
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Electrons in the ourtermost energy level of an atom are called ____________ electrons. |
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For an atom to become stable it can ______, ______, or ________ electrons. |
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This bond occurs when atoms share electrons:[image] |
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This bond occurs when atoms gain or lose electrons:[image] |
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Water is formed due to two atoms of ___________ bonding to one atom of _____________. |
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The hydrogen end of a water molecule is slightly __________. |
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The oxygen end of the water molecule is slightly __________. |
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Water is polar and sticks to other polar molecules. This is known as a __________ bond. |
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Property of water where water is sticking to water. |
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Property of water where water is sticking to another polar molecule (paper towel). |
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This occurs when both adhesion and cohesion are taking place. |
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What are the 3 molecules most important to living organisms? |
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1. carbohydrates
2. proteins
3. lipids |
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