Term
| What are Atoms made up of? |
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Definition
| protons, neutrons and electrons |
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Term
| Locate: Protons and Neutrons. |
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Definition
| In the center of the atom (Nucleus) |
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Term
| What is the name of the center of an atom? |
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Definition
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Term
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Definition
| Occupy the space surrounding the nucleus at varying distances. |
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Term
| What do electrons divide into? |
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Definition
core electrons
or
valence electrons |
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Term
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Definition
| the outermost electrons and the ones involved in chemical reactions |
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Term
| Electrons occupy most of the ________ of an atom. They arrange themselves in ______ at varying distances from the nucleus. |
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Definition
| Electrons occupy most of the volume of an atom. They arrange themselves in "shells" at varying distances from the nucleus. |
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Term
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Definition
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Term
| How do you represent valence electrons in a lewis dot structure? |
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Definition
| the group number = valence electrons. |
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Term
| "He" is in group 8 but how many valence electrons does it really have? |
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Definition
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Term
| which of the group numbers are extremely stable? |
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Definition
| Group 8 because they have full valence shells |
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Term
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Definition
| elements react in a way to attain the electron configuration of Group 8 |
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Term
| Metallic elements to the right or to the left tend to lose one or more electrons to form positive ions. |
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Definition
| The left. they tend to lose one or more electrons to form positive ions such as Na+ and Mg2, each of which has the electron configuration of the Noble Gas that preceeds it |
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Term
| Nonmetals to the left or right of the table tend to either gain electrons to form negative ions or to share electrons in covalent bonds |
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Definition
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Term
| FACT: When nonmetallic elements react with other nonmetallic elements, they share electrons in order to obtain 8 valence electrons |
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Definition
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Term
| How many valence electrons are needed to satisfy the Octet Rule? |
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Definition
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Term
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Definition
When valence electrons form together to form the right number of electrons together. ie-
:F:F: |
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Term
| What are the UNshared electrons called? |
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Definition
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