Chemistry Regents CODE Vocabulary
Across
- 4. a change in the properties of elements as you move around the periodic table
- 7. negatively charged and found in orbitals around the atom
- 11. neutrally charged and found in the nucleus
- 13. created the most widely-seen model of the atom, looks like a solar system
- 15. an atom with an excess number of neutrons, changes chemical properties
- 16. first scientist in ancient Greece who theorized the existence of atoms
- 18. a horizontal row of elements on the periodic table that show trends as you move from left to right
- 19. a group of multiple elements bonded together
- 20. most are solid and have shiny appearance, conduct electricity well, found on left side of periodic table
Down
- 1. had the plum pudding model of the atom
- 2. may be liquid or gas, found on the right side of the periodic table
- 3. the smallest unit of matter made of protons, neutrons, and electrons
- 5. an atom with specific chemical qualities
- 6. a group of multiple organic/nonmetallic elements bonded together, found in living things
- 8. the grouping of elements based on their chemical properties based on the work of Mendeleev and other scientists
- 9. a vertical column of elements on the periodic table with similar chemical properties
- 10. path of electrons around the nucleus of an atom
- 12. a charged atom or compound
- 14. discovered the atom is mostly empty space
- 17. some properties of metals but are dull in appearance and weak conductors of electricity, found along stair-step on periodic table
- 18. positively charged and found in the nucleus