C2 - Elements, Compounds and Mixtures Flashcards Preview

Chemistry OCR GCSE > C2 - Elements, Compounds and Mixtures > Flashcards

Flashcards in C2 - Elements, Compounds and Mixtures Deck (11):
1

What are the three states of matter?

1) solids
2) liquids
3) gases

2

What does the group correspond to?

The number of electrons the element has in its outer shell

3

What are the rows in the periodic table called?

Periods

4

What does each new period in the periodic table represent?

Another full outer shell of electrons

5

What are ions?

Charged particles

6

Why do atoms lose or gain electrons?

To get a full outer shell

7

What ions do metals form?

Positive

8

What ions do non-metals form?

Negative

9

Why do elements get more reactive as you go down groups 1 and 2?

You add electron shells, so they outer electrons get further away from the nucleus and it gets easier to remove them to form ions

10

Why do elements get less reactive as you go down groups 6 and 7?

You add electron shells, so they outer electrons get further away from the nucleus and it gets harder for the nucleus to attract extra electrons to form ions

11

What bond do metals and non-metals form?

Ionic