The Periodic Table

3. Element with proton number 20.
5. A substance which does not readily conduct electricity or allow heat to pass through.
10. Elements on the right side of the periodic table.
11. The vertical columns of the periodic table.
12. Any element in group 8 of the periodic table is known as __________.
14. The horizontal rows of the periodic table.
16. The elements in group 1 are referred to as _______.
18. Elements on the left side of the periodic table.
19. The eleventh element in the periodic table.
21. Metals allow both heat and electricity to pass through them and are therefore referred to as ____________.
22. The periodic table comprises of 118 ______.
23. The name given to the group 7 elements

1. Another name for groups because elements in the same group share similar characteristics.
2. All metals are solid at room temperature, except _________.
4. shiny and reflective
6. Scientist who introduced the law of octaves. (*last name)
7. Name given to the group 2 elements of the periodic table.
8. property of a substance that allows it to be stretched into a wire.
9. a chemical element with properties of both metals and non metals.
13. property of a substance that allows it to be molded into a different shape.
14. The symbol for this element is 'K'.
15. Measurement that compares the amount of matter an object has to its volume.
17. The periodic table is arranged in order of increasing _________.
20. Scientist who first published the periodic table.(*last name)