Across
- 3. uses the symbol of the element and dots to represent electrons and energy levels
- 8. atoms of the same element that have different numbers of neutrons
- 9. named in honor of Albert Einstein
- 10. element that typically is a hard, shiny solid, and is a good conductor of heat and electricity
- 12. a small positively charged center of an atom
- 16. particles with an electrical charge of 1-
- 17. the smaller particles that make up protons and neutrons
- 18. this element is usually found combined with sulfur
- 19. an arranged table of elements
Down
- 1. element that usually is a gas or brittle solid at room temperature is not malleable, or ductile, is a poor conductor of heat and electricity and typically is not shiny
- 2. a specific yellow fruit is a good source of this
- 4. horizontal rows of elements in the periodic table
- 5. the number of protons in an atom is equal to this
- 6. particals that do not have an electrical charge
- 7. the smallest piece of matter that still retains the property of the element
- 9. the area around the nucleus of an atom where its electrons are most likely found
- 11. discovered in Russia, but named after a state in the southeastern area of USA
- 13. gold dissolves in this element
- 14. a relatively rare, slightly orange metal
- 15. the vertical columns in the periodic table
- 20. the weighted average mass of the mixture of its isotopes