Periodic Table Puzzle-

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Across
  1. 6. a horizontal row of elements on the Periodic Table
  2. 7. a family or vertical column of elements with similar chemical properties on the Periodic Table
  3. 8. The positive particle inside the nucleus
  4. 9. how much an element reacts due to the valence electrons. Increases going down the group on the left side group 1, alkali metals. Increases going up the group on the right for group 7, halogens.
  5. 10. a type of element that has properties between metals and nonmetals; semiconductor of heat and electricity
  6. 12. a simple chemical substance, made of only one type of atoms, that cannot be broken down into a simpler substance
  7. 14. the energy required to remove an electron
  8. 17. Within the same shell/energy level, how do they move in the s, p, d, or f subshell.
  9. 18. a type of element that can be solid, liquid or gas; most are poor conductors of heat and electricity
  10. 19. is the measurement of energy, a particle, such as an electron can absorb. Energy shells/rings.
  11. 20. the average distance from the center of the nucleus to the outside of the electron cloud.
  12. 22. Atoms of the same element, but with a different number of neutrons
Down
  1. 1. a table of all elements arranged in order of increasing atomic number
  2. 2. parts of the atom, nucleus-center of atom; proton- +1 charge, 1 amu, inside nucleus; neutron- 0 charge, 1 amu, inside nucleus; electron- -1 charge, ~0 amu, outside nucleus-electron cloud
  3. 3. the ability of an atom to attract electrons in a chemical bond. Increases as you go to the right in a period, decreases as you go down a group
  4. 4. increases to the right in the period, increases as you go down the group.
  5. 5. This property becomes greater in the elements as you go down a group on the left side of the periodic table and becomes greater as you go up a group on the right side of the periodic table.
  6. 10. a type of element; most are solid at room temperature. They are good conductors of heat and electricity; shiny and dense
  7. 11. diagram to show the valence electrons around the symbol, will use to show bonding between atoms
  8. 13. shows the atom as a central nucleus containing protons and neutrons, with the electrons in circular electron shells at specific distances from the nucleus, similar to planets orbiting around the sun.
  9. 15. The rings around the nucleus. The energy levels, with shells closest to the nucleus being lower in energy than those farther from the nucleus.
  10. 16. electron The electrons located in the outer shell of the electron cloud; same # in the group, increases as you go to the right in the period.
  11. 21. atom that has gained or lost one or more electrons