Groups 1, 2, 6 and 7 are Most Likely to Form Ions Flashcards Preview

CGP GCSE Chem > Groups 1, 2, 6 and 7 are Most Likely to Form Ions > Flashcards

Flashcards in Groups 1, 2, 6 and 7 are Most Likely to Form Ions Deck (10)
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1
Q

Which elements most readily form ions?

A

Groups 1, 2, 6 and 7

2
Q

What are group 1 and 2 elements?

A

Metals and lose electrons to form +ve ions (cations)

3
Q

What are group 6 and 7 elements?

A

Non-metals and gain electrons to form -ve ions (anions)

4
Q

What are some cations:

A
Group 1:
Li+
Na+
K+
Group 2:
Be2+
Mg2+
Ca2+
5
Q

What are some anions?

A
Group 6:
O2-
S2-
Group 7:
F-
Cl-
Br-
6
Q

What happens when any of these cations meet up with any of the anions?

A

They attract each other to form an ionic compound

7
Q

Which elements will only form ionic compounds?

A

Elements at opposite sides of the periodic table

8
Q

What do elements in the same group all have?

A

The same number of outer electrons

9
Q

What do elements need to do in order to get a full outer shell?

A

Lose or gain the same number

10
Q

This means they form ions with the same…

A

Charges

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