Across
- 3. Fe
- 4. Vertical columns in the periodic table, where elements contain similar chemical properties
- 8. Na
- 10. A substance that produces hydroxide ions, HO− , in water. Taste bitter and turns litmus paper blue
- 11. ___________ electrons are the electrons in the outermost principal energy level of an atom.
- 13. Form positive ions
- 14. ______ Curie first discovered the radioactive elements polonium and radium
- 17. Co
- 19. He
- 20. Positively charged particles
- 21. Made of 2 or more elements that are chemically combines
- 22. _______ acid is a strong acid that is used in car batteries
- 23. The study ofthe behavior of matter and its charges and how it interacts with other matter and energy
- 25. Ca
Down
- 1. _____ rule states when several orbitals are available in a subshell, each orbital gets one electron before the electrons pair up
- 2. Negatively charged ions
- 5. Electron configuration for this element is
- 6. A _______ table is a table of the chemical elements arranged in order of atomic number
- 7. Ti
- 9. Nuclear particle with no charge
- 12. Ni
- 15. A substance that ionizes in water to form hydrogen ions, H+. Taste sour and turns litmus paper red.
- 16. The _____________ is the first antibiotic discovered by the scientist Alexander Fleming
- 18. Smallest particle of an element
- 24. The fundamental states of matter are: Liquid, solid, and _____