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Atoms and Bonding
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atom: the smallest particle that can still be considered an element
element: a subtance that cannot be broken down into any other substances by physical or chemical means.
valence electrons: electrons that have the highest energy.
electron dot diagram: the symbol for the element surrounded by dots.
chemical bond: the force of attraction that holds atoms together as a result of the rearrangement of electrons between them.
ion: an atom or group of atoms that has an electric charge.
polyatomic ions: ions that are made of more than 1 atom.
ionic bond: the attraction between two oppositely charged ions.
ionic compound: made up of positive and negative ions
chemical formula: a group of symbols that shows the ratio of elements in a compound.
subscripts: tell the ratio of elements in a compound.
crystal: the ions form an orderly, three-dimensional arrangement.
covalent bond: the chemical bond formed when 2 atoms share electrons.
moloecule: the 2 bonded fluorine atoms form.
double bond: 2 atoms that share 2 pairs of electrons.
triple bond: atoms of some elements, such as nitrogen, can share 3 pairs of electrons
molecular compound: a compound that is made up of ions and do not form molecules.
nonpolar bond: a covalent bond in which electrons are shared equally.
polar bond: a covalent bond in which electrons are shared unequally.
Atoms and Bonding
Across:1. | the chemical bond formed when 2 atoms share electrons. | 4. | a group of symbols that shows the ratio of elements in a compound. | 6. | 2 atoms that share 2 pairs of electrons. | 7. | the force of attraction that holds atoms together as a result of the rearrangement of electrons between them. |
| 12. | the symbol for the element surrounded by dots. | 16. | a subtance that cannot be broken down into any other substances by physical or chemical means. | 17. | tell the ratio of elements in a compound. | 18. | made up of positive and negative ions |
| | Down:1. | the ions form an orderly, three-dimensional arrangement. | 2. | the attraction between two oppositely charged ions. | 3. | the smallest particle that can still be considered an element | 5. | a compound that is made up of ions and do not form molecules. | 8. | ions that are made of more than 1 atom. | 9. | an atom or group of atoms that has an electric charge. |
| 10. | the 2 bonded fluorine atoms form. | 11. | electrons that have the highest energy. | 13. | a covalent bond in which electrons are shared equally. | 14. | atoms of some elements, such as nitrogen, can share 3 pairs of electrons | 15. | a covalent bond in which electrons are shared unequally. |
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© 2012
PuzzleFast.com, Noncommercial Use Only
Atoms and Bonding
Across:1. | the chemical bond formed when 2 atoms share electrons. | 4. | a group of symbols that shows the ratio of elements in a compound. | 6. | 2 atoms that share 2 pairs of electrons. | 7. | the force of attraction that holds atoms together as a result of the rearrangement of electrons between them. |
| 12. | the symbol for the element surrounded by dots. | 16. | a subtance that cannot be broken down into any other substances by physical or chemical means. | 17. | tell the ratio of elements in a compound. | 18. | made up of positive and negative ions |
| | Down:1. | the ions form an orderly, three-dimensional arrangement. | 2. | the attraction between two oppositely charged ions. | 3. | the smallest particle that can still be considered an element | 5. | a compound that is made up of ions and do not form molecules. | 8. | ions that are made of more than 1 atom. | 9. | an atom or group of atoms that has an electric charge. |
| 10. | the 2 bonded fluorine atoms form. | 11. | electrons that have the highest energy. | 13. | a covalent bond in which electrons are shared equally. | 14. | atoms of some elements, such as nitrogen, can share 3 pairs of electrons | 15. | a covalent bond in which electrons are shared unequally. |
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© 2012
PuzzleFast.com, Noncommercial Use Only