Across
- 4. positively charged ion
- 9. negatively charged subatomic particle
- 10. arrangement of elements in order of their atomic number so that elements with similar properties fall in the same column
- 11. change of state from a gas to a liquid
- 15. name of the elements in group 1
- 16. energy required to remove an electron from an atom
- 17. property of matter that describes a substance's ability to participate in chemical reactions
- 22. subatomic particle with no charge and a mass of 1 amu
- 23. atom with the same number of protons, but a different number of neutrons
- 25. number that identifies an element and is the same as the number of protons
- 27. a negative ion
Down
- 1. change of state from liquid to gas
- 2. change of state from a liquid to a solid
- 3. element with properties of both metals and nonmetals
- 4. type of bond between two nonmetals
- 5. elements of group 17
- 6. physical property of nonmetals that means that they break easily
- 7. substance that cannot be broken down into simpler substances by chemical means
- 8. region in an atom where there is a high probability of finding electrons
- 9. measure of the ability of an atom to attract electrons
- 12. an element of group 18
- 13. change of state from a solid to a liquid
- 14. electrons found in the outermost shell of an atom that are used in bonding
- 17. property of metals that allows them to be used in electical wiring
- 18. number determined by adding the protons and neutrons together
- 19. the only periodic trend that increases down and to the left on the periodic table
- 20. subatomic particle with a positive charge and a mass of 1 amu
- 21. type of bonding between a metal and a nonmetal
- 24. elements in the top right of the periodic table that does not conduct heat or electricity
- 26. elements on the bottom left side of the periodic table that conducts heat and electricity