2. Periodic Table

Question 1

1. What order are the elements arranged in the modern periodic table?

Answer 1

1. Atomic number

Question 2

2. What order were they put into in the early periodic table?

Answer 2

2. Atomic mass

Question 3

3. How did Mendeleev improve the periodic table?

Answer 3

3. Left gaps

Question 4

4. Why doesn’t it work to put the elements in order of atomic weight?

Answer 4

4. Because of isotopes

Question 5

5. Where are metals found on the periodic table?

Answer 5

5. Left hand side

Question 6

6. Do metals form positive or negative ions?

Answer 6

6. Positive

Question 7

7. What are elements in group 0 called?

Answer 7

7. Noble gases

Question 8

8. How reactive are the group 0 elements?

Answer 8

8. Very unreactive

Question 9

9. How does the boiling point of the noble gases change as you go down the group?

Answer 9

9. Increases (gets higher)

Question 10

10.Which group are the alkali metals?

Answer 10

10. Group 1

Question 11

11.How reactive are the alkali metals?

Answer 11

11. Very reactive

Question 12

12. What do the alkali metals react with oxygen to make?

Answer 12

12. Metal oxides

Question 13

13.What do the alkali metals react with chlorine to make?

Answer 13

13. Metal chlorides

Question 14

14.What do the alkali metals react with water to make?

Answer 14

14. Metal hydroxides and hydrogen

Question 15

15.How does the reactivity of the alkali metals change as you go down the group?

Answer 15

15. Get more reactive

Question 16

16.What group are the halogens?

Answer 16

16.Group 7

Question 17

17.They exist as diatomic molecules. What does diatomic mean?

Answer 17

17. Two atoms bonded together

Question 18

18.How does the reactivity of the halogens change as you go down the group?

Answer 18

18. Get less reactive