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Elements: A pure substance that can't be broken by any means
Compound: A bond between 2+ elements that forms something new with new properties
Atom: The smallest composition of an element that still is that element
Families: another name for group
Periods: a horizontal row of elements in the periodic table
Alkali Metals: 1 valence electron. They are soft metallic solids, with characteristic metal properties of shiny luster and high thermal and electrical conductivities
Alkali Earth Metals: have 2 valence electrons
Halogens: have 7 valence electrons. They are typical nonmetals
Noble Gases: 8 valence electrons
Transition Metals: 2 valence electrons
Metals: the elements that are good conductors of heat and electricity
Metalloids: an element that has properties of both a metal and nonmetal
Nonmetals: the elements that are usually poor conductors of heat and electricity
Group: a vertical column of elements in the periodic table
Electrons: a negatively charged subatomic particle found in the energy level of an atom
Protons: a positively charged subatomic particle in the nucleus of an atom
Neutrons: a neutral subatomic particle in the nucleus of an atom
Element Symbol: ex. He
Average Atomic Mass: the weighted average of the masses of all naturally occurring isotopes of an element metal
Atomic Number: the number of protons in the nucleus of an atom
Isotope: Atoms that have an equal number of protons, and hence are of the same element, but differ in their number of neutrons
Across:1. | the weighted average of the masses of all naturally occurring isotopes of an element metal | 2. | The smallest composition of an element that still is that element | 3. | a negatively charged subatomic particle found in the energy level of an atom | 4. | a neutral subatomic particle in the nucleus of an atom | 6. | an element that has properties of both a metal and nonmetal | 8. | A bond between 2+ elements that forms something new with new properties |
| 13. | another name for group | 14. | the elements that are good conductors of heat and electricity | 17. | the elements that are usually poor conductors of heat and electricity | 18. | 2 valence electrons | 19. | 8 valence electrons | 20. | have 7 valence electrons. They are typical nonmetals |
| | Down:2. | have 2 valence electrons | 5. | a vertical column of elements in the periodic table | 7. | 1 valence electron. They are soft metallic solids, with characteristic metal properties of shiny luster and high thermal and electrical conductivities | 9. | A pure substance that can't be broken by any means | 10. | the number of protons in the nucleus of an atom |
| 11. | a horizontal row of elements in the periodic table | 12. | ex. He | 15. | a positively charged subatomic particle in the nucleus of an atom | 16. | Atoms that have an equal number of protons, and hence are of the same element, but differ in their number of neutrons |
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PuzzleFast.com, Noncommercial Use Only
Across:1. | the weighted average of the masses of all naturally occurring isotopes of an element metal | 2. | The smallest composition of an element that still is that element | 3. | a negatively charged subatomic particle found in the energy level of an atom | 4. | a neutral subatomic particle in the nucleus of an atom | 6. | an element that has properties of both a metal and nonmetal | 8. | A bond between 2+ elements that forms something new with new properties |
| 13. | another name for group | 14. | the elements that are good conductors of heat and electricity | 17. | the elements that are usually poor conductors of heat and electricity | 18. | 2 valence electrons | 19. | 8 valence electrons | 20. | have 7 valence electrons. They are typical nonmetals |
| | Down:2. | have 2 valence electrons | 5. | a vertical column of elements in the periodic table | 7. | 1 valence electron. They are soft metallic solids, with characteristic metal properties of shiny luster and high thermal and electrical conductivities | 9. | A pure substance that can't be broken by any means | 10. | the number of protons in the nucleus of an atom |
| 11. | a horizontal row of elements in the periodic table | 12. | ex. He | 15. | a positively charged subatomic particle in the nucleus of an atom | 16. | Atoms that have an equal number of protons, and hence are of the same element, but differ in their number of neutrons |
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© 2014
PuzzleFast.com, Noncommercial Use Only