Periodic Table
Across
- 4. What are the vertical columns of elements in a periodic table called?
- 6. who arranged the elements in a table by order of atomic number instead of atomic mass?
- 8. what is the gas located in group 0, period 1?
- 9. the nonmetals in group 7A are called the ________.
- 12. the lanthanide and actinide series are apart of the ______ transition metals.
- 13. Group 1A elements are called the ______ metals.
- 14. The elements in group 2A are called _______ earth metals.
- 15. What are the horizontal rows of the periodic table called?
- 16. what are poor conductors of electricity ands are generally non lustrous?
- 19. what is shiny and have a high electrical conductivity
- 20. The nonmetals in group 0 are known as the ___________.
Down
- 1. who listed the elements in columns in order of increasing atomic mass?
- 2. Group A elements are called the _______ elements.
- 3. what is the nonmetal located in group 3A, period 2.
- 5. what is an arrangement of the elements according to similarities in their properties?
- 7. the elements, copper, gold, iron, and mercury, are all located in what group?
- 10. The periodic table are elements that are organized in groups and periods in order of _________ atomic number.
- 11. what are elements with properties that are intermediate between those of metals and nonmetals?
- 17. what is the total number of protons and neutrons in an atom called?
- 18. what is the metal located in group 1A, period 4?