Chmestry : )
Across
- 5. every atom has one
- 6. what does a electron do when it goes from a higher energy level to a lower one
- 10. what is made of neutrons and protons
- 11. unstable isotopes are commonly called ____ (put a dash between)
- 14. what is the atomic number of argon
- 17. basic unit of a chemical unit
- 18. positively charged atoms with less electrons then protons
- 19. What is Y representing on the periodic table
- 25. What is Dy representing on the periodic table
- 26. amplitude
- 27. what is the atomic number for sodium
- 30. what is H representing on the periodic table
- 31. each element of the periodic table is represented by a ____
- 33. displays wavelength and frequency (put a dash)
- 38. atoms are made up of how many subatomic particles?
- 40. neutral atoms have zero ___
- 41. Negatively charged atoms with more electrons then protons
- 44. what is the atomic number for Zinc (write it out)
- 45. adds negative charge to an atom
Down
- 1. what is O representing on the periodic table
- 2. what state are valence electrons most common in (put a dash)
- 3. What is the atomic number of Fermium
- 4. What is Po representing on the periodic table
- 7. what is S representing on the periodic table
- 8. what is Zn representing on the periodic table
- 9. the amount of waves per second is called ___
- 12. What is the atomic number for ytterbium
- 13. what is Na representing on the periodic table
- 15. the straight line that goes through the center of the circle is the ___
- 16. minimum amount of energy that can be gained or lost from an atom
- 20. what is Ti representing on the periodic table
- 21. a shell that can hold electrons
- 22. elements of an atom with same number of protons but different amount of neutrons
- 23. What is Pb representing on the periodic table
- 24. What is the atomic number for magnesium
- 28. atoms absorb energy and become excited
- 29. gives a positive charge to a atom
- 32. what is the atomic number of Zirconium
- 34. what absorbs energy from a flame when the substance is heated
- 35. what is I representing on the periodic table
- 36. What is Ca representing on the periodic table
- 37. What is Rn representing on the periodic table
- 39. atoms are mostly ____ (put a dash in between the words)
- 42. atoms are made of what kind of particles
- 43. adds mass to an atom but no charge