Physical Science Unit 7 Vocab
Across
- 1. a visual model of the most likely locations for the electrons in an atom
- 2. a neutral subatomic particle that is found in the nucleus of an atom
- 7. a unique number for each element that equals the number of protons in an atom of that element
- 8. the arrangement of electrons in the orbitals of an atom
- 13. an arrangement of elements in columns, based on a set of properties that repeat from row to row
- 16. the elements in Group 7A of the periodic table
- 18. elements that are poor conductors of heat and electric current
- 20. the elements in Group 2A of the periodic table
- 22. a positively charged subatomic particle that is found in the nucleus of an atom
- 24. the elements in Group 1A of the periodic table, not including hydrogen
- 26. the sum of the number of protons and neutrons in the nucleus of an atom
Down
- 1. the possible energies that electrons in an atom can have
- 3. the elements in Group 8A of the periodic table
- 4. a negatively charged subatomic particle that is found in the space outside the nucleus of an atom
- 5. a region of space around the nucleus where an electron is likely to be found
- 6. an electron tat is in the highest occupied energy level of an atom
- 9. a state I which all the electrons in an atom have the lowest possible energies
- 10. the dense, positively charges mass located in the center of an atom
- 11. atoms of a given element that have different numbers of neutrons and different mass numbers
- 12. elements that form a bridge between elements on the left and right sides of the periodic table
- 14. a column of elements in the periodic table
- 15. the pattern of repeating properties displayed by elements I the periodic table
- 17. one twelfth the mass of a carbon-12 atom
- 19. elements that are good conductors of heat and electric current
- 21. elements with properties that fall between those of metals and nonmetals
- 23. a row in a periodic table of elements
- 25. atomic mass unit