Name: ______
Assignment 6-1 & 6-2
1. What are some properties Mendeleev used to place the elements in order?
2. Define the word periodic.
3. According to modern periodic law, what determines the order of the elements?
4. What is the modern name for the element Mendeleev called “ekasilicon”?
5. What did Mendeleev notice about the pattern of “valences” of the elements?
6. How many valence electrons would be common for an atom of a metal?
7. How many valence electrons would be common for an atom of a nonmetal?
8. What usually happens to the outer electrons of metallic atoms when they combine chemically with nonmetallic atoms?
9. Define corrosion.
10. Give two examples of corrosion.
11. If an object is said to have luster, what is another word that would describe the same characteristic?
12. What is the name given to the horizontal rows of elements in the periodic table?
13. What are the vertical columns of elements called? or
14. In each element square on the periodic table there is a number that has a decimal point in it. What does this number represent?
15. Look at the diagrams in Figure 6-7. How is the electron arrangement in each element similar?
16. List five physical properties of metals.
17. Define the term ductile.
18. Define the term malleable.
19. What do we know about the elements that are in the same vertical column?
20. What patterns are evident as you look at the elements in a period from left-to-right?
21. Generally speaking, how do the physical properties of the nonmetals compare to those of the metals?
22. What happens with the outermost energy level of nonmetallic atoms when they combine chemically with metallic atoms?
23. What is unique about nonmetals with 8 electrons in the outermost energy level?
24. What are metalloids?
25. List the names of the metalloids and their chemical symbols.
Element Name / Symbol / Element Name / Symbol