Term
| What are Valence Electrons? |
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Definition
| Valence electrons are the electrons at the highest orbital or energy state in an atom. These are the electrons that react with the valence electrons of other atoms to form molecules |
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Term
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Definition
| Two or more atoms held together by chemical bonds. |
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Term
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Definition
| Multiple atoms are bound together through sharing electrons to form molecules. |
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Term
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Definition
| Atoms held together by opposite (+/-) charges. Usually an Alkali Metal with one valance electron easily gives up that electron to a Halogen with 7 valence electrons. The Halogen wants to get to 8 electrons in its highest energy level. So... the Alkali Metal becomes positively charged (one more proton than electrons) and the Halogen becomes negative (one more electron than protons). Since these two atoms have opposite charges, they attract one another to form a molecule. |
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Term
| What is a common ionic molecule |
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Definition
| NaCl - sodium chloride - table salt |
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Term
| How many valence electrons does Potassium (K) have? |
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Definition
| Potassium is in Group 1 (Column 1) so it has one valence electron which it readily gives up when forming a compound. If it gives up this valence electron it becomes positive K+ |
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Term
| How many valance electrons does Chlorine (Cl) have? |
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Definition
| Chlorine has 7 valence electrons (Group 17 - nest to the Noble gasses). It wants to grab one more electron to get to 8. If it picks up an electron when forming a compound, it becomes negative (CL-) |
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Term
| How many valence electrons does Carbon have? |
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Definition
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