Across
- 2. a stable isotope twice the weight of the usual isotope
- 4. acquires electrons to form negative charges
- 6. electrons surrounding the nucleus
- 7. used to measure mass-to-charge ratio
- 12. size of atoms in chemical element
- 13. protons minus neutrons
- 15. minimum amount to remove the most loose electron
- 16. positively charged center of the atom
- 17. resides on the periodic table
- 19. positive charge
- 20. positively charged and attracted to cathrode
Down
- 1. set of elements occupying periodic table
- 3. House of the elements
- 5. two or more elements with equal protons
- 8. neutral charge
- 9. composed of multiple elements
- 10. column in periodic table
- 11. total amount of protons and neutrons
- 14. negatively charges and attracted to
- 18. negative charge