C2 Periodic Table Flashcards Preview

Combined Chemistry - Paper 1 > C2 Periodic Table > Flashcards

Flashcards in C2 Periodic Table Deck (19):
1

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

1. Atomic number

2

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

2. Atomic mass

3

3. How did Mendeleev improve the periodic table?

3. Left gaps

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

4. Because of isotopes

5

5. Where are metals found on the periodic table?

5. Left hand side

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6. Why do elements in the same column of periodic table have similar chemical properties?

6. Same number of electrons in outer shell.

7

7. Do metals form positive or negative ions?

7. Positive

8

8. What are elements in group 0 called?

8. Noble gases

9

9. How reactive are the group 0 elements?

9. Very unreactive

10

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

10. Increases (gets higher)

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11. What are the elements in Group 1 known as?

The Alkali metals

12

12. How reactive are the alkali metals?

Very reactive

13

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

Metal oxides

14

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

Metal chlorides

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

Metal hydroxides and hydrogen

16

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

Get more reactive

17

What is the name given to the Group 7 elements?

The Halogens

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18. The Halogens exist as diatomic molecules. What does diatomic mean?

Two atoms bonded together

19

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

Get less reactive