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