Term
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Definition
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Term
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Definition
| tells the number of each kind of atom in a compound. ie. H2O has 2 hydrogen and 1 oxygen. |
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Term
How many Irons and oxygens are in the following:
3FEO2 |
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Definition
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Term
| What is the ratio in H2SO4 |
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Definition
2 H, 1S, 4O
therefore the ratio is 2:1:4 |
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Term
| What type of bond is the force that holds atoms together? |
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Definition
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Term
| What type of bond is the force that holds atoms together? |
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Definition
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Term
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Definition
| A force of attraction that holds a pair of atoms together. |
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Term
| In order to make the overall charge of an atom zero, there must be an equal number of negatively charged ___________. |
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Definition
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Term
| Which electrons determine whether or not an atom will form bonds? |
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Definition
| the electrons in the outermost energy level. |
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Term
| An atom will not normally form a chemical bond if it has __________ valence electrons. |
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Definition
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Term
| How do two atoms become ions? |
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Definition
| by gaining or losing electrons |
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Term
| An atom that loses one or more electrons from its outermost energy level becomes a __________________. |
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Definition
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Term
| Why do the elements in Groups 1 and 2 react so easily? |
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Definition
| Little energy is needed to remove electrons. |
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Term
| The names of negative ions that form when atoms gain electrons have the ending __________________. |
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Definition
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Term
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Definition
| 2 or more elements combine to make a new substance . |
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Term
| How many electrons are in the first outer energy level? |
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Definition
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Term
| How many electron are in the outer second energy level? |
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Definition
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Term
| How many electrons are in the outer third energy level? |
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Definition
3a 8 electrons
3b 8 electrons |
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Term
| What do metals do with electrons? |
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Definition
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Term
| What do nonmetals do with electrons? |
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Definition
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Term
| What is chemical bonding? |
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Definition
| joining of atoms to form new substances. |
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Term
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Definition
| The force of attraction that holds two atoms together. |
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Term
| What are the electrons in the outermost level called? |
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Definition
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Term
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Definition
| The force of attraction between oppositely charged ions. |
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Term
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Definition
| charged particles that form during chemical changes when oone or more valence electrons transfer from one atom to another. |
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Term
| How does an atom become a negative ion? |
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Definition
| Atoms that gain electrons from other atoms during chemical changes form a negative ion. |
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Term
| How does an atom become a negative ion? |
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Definition
| By losing or sharing electrons. |
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Term
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Definition
| ions that make up an ionic compound are bonded in a repeating 3 dimension pattern called a crystal lattice. |
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Term
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Definition
| The force of attraction between the nuclei of atoms and the electrons shared by the atoms. |
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Term
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Definition
| A neutral group of atoms held together by covalent bonds. |
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Term
| What is a electron dot diagram? |
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Definition
a model that shows only the valence(or outer) electrons in an atom.
example:
H:H |
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Term
| What is the smallest particle of a covalent compound? |
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Definition
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Term
| All molecules are composed of at least _____ covalently bonded atoms. |
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Definition
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Term
| What are the simplest molecules and how many atoms are bonded together? |
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Definition
| diatomic molecules have 2 atoms bonded together. |
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Term
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Definition
| The force of attraction between a positively charged metal ion and the electrons in a metal. |
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