Across
- 3. an abbreviation for an element
- 5. produces no charge in an element
- 8. a wave function describing state of a single electron
- 9. the P.T) horizontal row on the periodic table
- 12. the P.T) a column of elements in the periodic table of elements
- 16. a substance participating in a chemical reaction
- 17. produces a positive charge in an element
- 19. reaction that releases energy through heat or light
- 20. the control center of the atom
- 21. Conservation of Mass states that mass is an isolated system that is neither created or destroyed
- 23. produces a negative charge in an element
- 24. Elements that can form when compounds of it are in solution and oxides of the elements from hydroxides rather water.
- 25. a substance that is the result of recombination of atoms
Down
- 1. a substance that consists of atoms which all have the same number of protons and electrons
- 2. Gas any element in group 0 of the periodic table
- 4. is a substance formed when two or more elements are bound together
- 6. the process to which metal is added to the outside of an object.
- 7. the smallest thing in an element
- 10. reaction that absorbs heat
- 11. cannot conduct electricity and very brittle
- 13. electron the electron that are in the outer shell of an atom
- 14. Number the number of protons and electrons inside of an element
- 15. the smallest particle in a element or compound
- 18. a chemical element with properties that intermediate between those of typical metals and non-metals
- 22. Mendeleev a Russian chemist and inventor