Periodic Table

2. an element or substance that conducts heat and electricity, is malleable
5. Shielding A shielding effect that multiple principle energy levels has on a
9. level (valence shell)
12. an atom that has gained or lost one or more electrons
13. describes how likely an element is to form bonds with other elements
14. Metals Group 1 metals on the periodic table that contain 1 valence electron
15. ductile and has low ionization energy and low electronegativity values

1. Electrons electrons that are located in the outermost energy level of an atom
3. Nuclear Charge charge of an atoms nucleus resulting from it's number of
4. a vertical column (up and down) on the periodic table
6. The noble gases (group 18) elements are inert because of a full valence
7. Radius The distance between the nucleus of an atom and it's outermost
8. elements and/or compounds that when put together are unable to react
10. blocking it's attraction for the valence electrons
11. a horizontal row (left to right) in the periodic table
15. lose their valence electrons the most easily, making them the most reactive