Across
- 4. holds electrons, as you go down a period you gain an extra one
- 6. The ability of protons (+) to pull in electrons (-)
- 9. A three-dimensional mathematical description of the most likely location of an electron in an atom
- 11. Electrons are negatively charged subatomic particles. They are present in the energy shells around the nucleus of an atom.
- 12. Tend to be brittle, are semiconductors, and include elements like Arsenic and Silicon
- 13. The outermost shell, or principal quantum level, of an atom
- 14. Are shiny, are good conductors of heat/electricity, most of the elements on the periodic table are these
- 15. Occurring repeatedly from time to time, consisting of or containing a series of repeated patterns, cyclic
- 16. A subatomic particle with a positive charge that is located in the nucleus of an atom and has a mass of approximately 1 amu.
- 18. The electrons in the energy levels between protons and valence electrons blocking their attraction
- 19. The creation of an ion through the loss of one or more electrons from an atom
Down
- 1. The ability of matter to combine chemically with other substances
- 2. Describe the general change in some variable in relation to another and can be described as decreasing, going down, or increasing, going up.
- 3. The most reactive group on the Periodic Table, has 1 valence electron
- 5. The vertical columns (up-down). There are 18 groups on the Periodic Table.
- 7. Atomic radius is a measure of the size of an atom, and is generally defined as the distance from the nucleus to the outermost electron orbit
- 8. The tendency of an atom to attract electrons and acquire a negative charge
- 10. The least reactive group on the Periodic Table, has 8 valence electrons
- 16. The horizontal rows (left-right). There are 7 periods on the Periodic Table.
- 17. A subatomic particle with no electric charge that is located within the nucleus of the atom and has a mass approximately equal to 1 amu.