Across
- 7. total number of protons and neutrons in a nucleus
- 9. metals in Group IA (1) of the periodic table.
- 10. state a state that is higher than ground state
- 11. the smallest particle of a chemical element that can exist
- 13. a series of fifteen metallic elements
- 14. the space electrons travels in
- 15. any of the gaseous elements in Group 0 (18) of the periodic table
- 17. one of a quantized series of states in which matter may exist
- 18. a negatively charged ion
- 20. any element in group 17 of the periodic table
- 23. the distribution of electrons of an atom or molecule
- 24. an atom that has an electric charge
- 26. an atomic model starting with B
- 27. a type of chemical bond that generates two oppositely charged ions
- 29. present in all atomic nuclei except those of ordinary hydrogen
- 30. number the number of protthe smallest particle of a chemical element that can exist.ons in the nucleus of an atom
- 31. the lowest energy state of an atom
Down
- 1. any of the set of metallic elements occupying a central block
- 2. something that is composed of two or more elements
- 3. a substance consisting of atoms
- 4. the outermost shell of an atom
- 5. positively charged ion
- 6. electrons in the outer most shell of an atom
- 8. another term for semimetal
- 12. Found in all atoms,is negatively charged
- 16. a sign that identifies an element
- 18. any of the series of fifteen metallic elements
- 19. center of an atom
- 21. a column in the periodic table
- 22. a particle representing a quantum of light
- 25. rows in periodic table
- 28. each of two or more forms of the same element