Periodic Table Crossword Puzzle

1. number sum of the number of protons and neutrons in a specific isotope
4. metals found in group one that are very reactive
5. name of region in the nucleus that elements spin around
6. element with symbol Na and 11 is its atomic number
7. tells about the elements properties and how reactive the element is
8. created the first known periodic table consisting of 63 known elements grouped into rows and columns
9. part of mixed groups 13-17 with properties of metals and nonmetals
14. the number of these are equal to mass number minus atomic number
15. found under the symbol and is what the element is most commonly referred to as
16. amount of rows (also called periods) in the periodic table

1. conduct electricity and heat with a shiny appearance
2. metals in group two that are more reactive than all metals except one group
3. number how the elements are arranged, devised by Henry G. Moseley
6. group 13 includes this many elements
7. elements in the same group share these or have these in common
10. atoms of the same element that have different number of neutrons
11. element in period 3 with symbol Si
12. makes up protons and neutrons, six known to man
13. 18 vertical columns where the elements have the same number of electrons in the outer orbital
14. gases group 18 that consists of six elements