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Periodic Table
22
element : Another name for atom.
atomic symbol : The _____ is an abbreviation of the name of an element.
atomic number : _____ is the number of protons in the element.
atomic mass : The combined number of protons and neutrons in the nucleus of an element is its _____ .
periodic table : The _____ is a chart used to classify elements.
groups : The elements in a column are known as _____ .
periods : The horizontal rows in a periodic table are known as _____ .
families : Sometimes known as "groups."
valence electrons : The number of electrons in the outermost shell of an atom are known as _____ .
electron orbitals : _____ located closer to the nucleus of an atom contain fewer electrons than those shells farther away.
electron shells : Special rules determine the number of electrons found in each of the _____ .
nonmetals : _____ are elements that are found on the right side of the periodic table. Most of them are gases at room temperature and are poor conductors of electricity and heat.
metals : _____ are elements that are good conductors of electricity and heat and have a shiny appearance.
metalloids : _____ are elements that have properties of both metals and nonmetals.
alkali metals : _____ are very reactive.
alkaline earth metals : _____ are a family of metals that are less reactive than alkaline metals.
transition metals : _____ are elements in the middle of the periodic table that are less reactive than other metals.
halogens : _____ are a group of elements that are very reactive and often used to clean harmful microorganisms.
noble gases : _____ are a group of elements that never react with other elements. They have a full valence electron shell.
lanthanides : _____ are a group of elements that are also called "rare earth elements" and are shown outside of the main body of the periodic table.
actinides : ____ are a group of elements that are chemically produced and are shown outside of the main body of the periodic table.
mendeleev : _____ is the scientist who found a way to organize elements.
bohr diagram : A _____ shows the proton, neutron, and electron configuration of an atom.
Periodic Table
Across:4. | _____ located closer to the nucleus of an atom contain fewer electrons than those shells farther away. | 6. | _____ is the scientist who found a way to organize elements. | 9. | Special rules determine the number of electrons found in each of the _____ . | 10. | The horizontal rows in a periodic table are known as _____ . | 11. | Sometimes known as "groups." | 16. | The _____ is a chart used to classify elements. | 17. | _____ are elements that are found on the right side of the periodic table. Most of them are gases at room temperature and are poor conductors of electricity and heat. | 20. | The combined number of protons and neutrons in the nucleus of an element is its _____ . | 21. | _____ are a group of elements that are very reactive and often used to clean harmful microorganisms. | 22. | _____ are a group of elements that are also called "rare earth elements" and are shown outside of the main body of the periodic table. |
| | Down:1. | Another name for atom. | 2. | _____ is the number of protons in the element. | 3. | The number of electrons in the outermost shell of an atom are known as _____ . | 5. | _____ are a family of metals that are less reactive than alkaline metals. | 7. | _____ are elements that are good conductors of electricity and heat and have a shiny appearance. | 8. | A _____ shows the proton, neutron, and electron configuration of an atom. | 12. | _____ are very reactive. | 13. | _____ are a group of elements that never react with other elements. They have a full valence electron shell. | 14. | _____ are elements in the middle of the periodic table that are less reactive than other metals. | 15. | The _____ is an abbreviation of the name of an element. | 18. | ____ are a group of elements that are chemically produced and are shown outside of the main body of the periodic table. | 19. | _____ are elements that have properties of both metals and nonmetals. |
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Periodic Table
Across:4. | _____ located closer to the nucleus of an atom contain fewer electrons than those shells farther away. | 6. | _____ is the scientist who found a way to organize elements. | 9. | Special rules determine the number of electrons found in each of the _____ . | 10. | The horizontal rows in a periodic table are known as _____ . | 11. | Sometimes known as "groups." | 16. | The _____ is a chart used to classify elements. | 17. | _____ are elements that are found on the right side of the periodic table. Most of them are gases at room temperature and are poor conductors of electricity and heat. | 20. | The combined number of protons and neutrons in the nucleus of an element is its _____ . | 21. | _____ are a group of elements that are very reactive and often used to clean harmful microorganisms. | 22. | _____ are a group of elements that are also called "rare earth elements" and are shown outside of the main body of the periodic table. |
| | Down:1. | Another name for atom. | 2. | _____ is the number of protons in the element. | 3. | The number of electrons in the outermost shell of an atom are known as _____ . | 5. | _____ are a family of metals that are less reactive than alkaline metals. | 7. | _____ are elements that are good conductors of electricity and heat and have a shiny appearance. | 8. | A _____ shows the proton, neutron, and electron configuration of an atom. | 12. | _____ are very reactive. | 13. | _____ are a group of elements that never react with other elements. They have a full valence electron shell. | 14. | _____ are elements in the middle of the periodic table that are less reactive than other metals. | 15. | The _____ is an abbreviation of the name of an element. | 18. | ____ are a group of elements that are chemically produced and are shown outside of the main body of the periodic table. | 19. | _____ are elements that have properties of both metals and nonmetals. |
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© 2013
PuzzleFast.com, Noncommercial Use Only