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12 Cards in this Set
- Front
- Back
An atom that has fewer than 8 valence electrons is more _______, or more likely to form a bond than an atom with 8 valence electrons.
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reactive
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The atomic number represents the number of __________ and _________ in the atom
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protons
electrons |
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The levels farther from the nucleus contain electrons that have _____ energy that levels closer to the nucleus.
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more
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Chemical bonds involve the _________ in the atoms.
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electrons
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Atoms bond by gaining, losing , or sharing elecrons in order to have a _______ outermost energy level.
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filled
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The number of electrons in an atom can be determined by the _________ ___________.
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Atomic number
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The first energy level can hold up to _____ electrons.
The second energy can hold up to ___ electrons. The outermost energy level is considered to be full if it contains ___ electrons. |
2
8 8 |
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The electrons in the outermost energy level of an atom are called ___________ electrons.
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valence
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The joining of atoms to form new substances is called ____________ ___________.
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chemical bonding
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Most atoms form bonds using only the electronsin their ___________ energy level.
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outermost
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A force of attraction that holds two atoms together is called a ___________ _________.
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chemical bond
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1- Li, Na, _
2- Be, __, Ca 3- _, Al 4- _, Si 5- N, _ 6- -, S 7- F, __ |
K
Mg B C P O Cl |