U1S2 - Crossword Labs

4. gradual change of any property in the elements across a period
6. describes where an electron is likely to be found in an atom
7. An element that lacks most of the properties of a metal
10. metallic elements in group 2 of the periodic table which are harder than the alkali metals and are also less reactive
14. the energy change that occurs when an electron is acquired by a neutral atom
15. group 3-12
16. radius one-half the distance between the nuclei of identical atoms that are bonded together
17. the 14 elements on the bottom row
18. a horizontal row of elements in the period table
19. Group 1, 1 electron in outer level, very reactive, soft, silver, shiny, low density; Lithium, Sodium, Potassium, Rubidium, Cesium, Francium
21. a measure of how easily an element loses a valence electron
22. a column on the periodic table
23. table a tabular display of the chemical elements

1. An element found in group 17 of the periodic table
2. nonmetals are NOT malleable (shatter upon being hit with a hammer), NOT ductile, do NOT have luster (dull), and do NOT conduct electricity
3. an element that is shiny and that conducts heat and electricity well
5. the arrangement of electrons in an atom
8. the elements in Group 8A of the periodic table
9. group 1 and 2
11. the specific amount of energy an electron has
12. the amount of energy required to remove an atom
13. an element that has properties of both metals and nonmetals
20. a measure of the ability of an atom in a chemical compound to attract electrons
23. group 13-18