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| subatomic particle with positive charge |
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| subatomic particle with no charge |
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Definition
| subatomic particle with negative charge |
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| 1/1840 th the mass of a proton or neutron |
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Definition
| electrons in the outer shell of an atom |
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| subatomic particles making up most of the mass of an atom |
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| number of protons in an atom |
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Definition
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| Atoms with the same number of protons, but different number of neutrons |
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| Weighted mass of all the isotopes of an atom |
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Definition
| The number of neutrons and protons in an atom (the average atomic mass rounded) |
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| An atom that has lost or gained electrons |
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| Atoms having the same number of protons as electrons (positive and negative charges are equal) |
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Definition
| Atoms that have lost one or more electrons froming a positive ion |
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| Atoms that have gained one or more electrons forming a negative ion. |
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Definition
Element name or symbol followed by the mass number.
For example: C-14 |
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Term
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Shows the mass number and atomic number with the element symbol.
For example: 14C
6 |
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Definition
| Model of the atom showing electrons in specific energy levels around the nucleus. |
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Definition
Shell or "n"
Place where electrons can be. |
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Definition
| Number of electrons that can be on the first energy level. |
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| Number of electrons that can be on the second energy level. |
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| Number of electrons that can be on the third energy level. |
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| Formula used to calculate number of electrons in an energy level- where "n" is the energy level |
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Term
[image]
The top number is |
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[image]
The bottom number is ___. |
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Definition
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[image]
Hyphen notation for this atom |
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Term
C-12
C-13
C-14
The above elements have the same number of ___ but different number of ____ |
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Definition
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Term
C-12
C-13
C-14
The atoms above are all _____ of carbon |
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Definition
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Term
[image]
The mass number of Aluminum is ____ |
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Definition
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[image]
The number of neutrons in Aluminum |
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| Verticle (up and down) columns of the periodic table |
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| Horizontal (across) on periodic table |
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| Lanthinde and Actinide series |
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Definition
| Elements to the left of the stair-step line on periodic table |
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Definition
| Elements to the right of the stair-step line on periodic table |
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| The only 2 liquid elements at room temperature |
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Definition
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Definition
| Element symbol with valence electrons shown as dots |
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Definition
| Lewis structure for Chlorine |
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| Mostly solid at room temperature, conduct electricity and heat, are malleable and ductile |
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Definition
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| Do not conduct electricity, are insulators, brittle and can be solids, liquids or gases at room temperature. |
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| Have properties of both metals and nonmetals |
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Definition
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| Type of bond in which electrons are transferred from one atom to another |
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| Type of bond in which electrons are shared between atoms |
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