Polyatomic Ions Flashcards
1
Q
Ammonium
A
Nh4+
1+
2
Q
Hydroxide
A
OH-
1-
3
Q
Nitrate
A
NO3-
1-
4
Q
Nitrite
A
NO2-
1-
5
Q
Hydrogencarbonate
A
HCO3-
1-
6
Q
Manganate(VII)/ permanganate
A
MnO4-
1-
7
Q
Carbonate
A
CO3 2-
2-
8
Q
Sulfate
A
SO4 2-
2-
9
Q
Sulfite
A
SO3 2-
2-
10
Q
Dichromate (vi)
A
Cr2O7 2-
2-
11
Q
Phosphate
A
PO4 3-
3-
12
Q
molecular ions
A
covalently bonded atoms/molecules that lose or gain electrons
13
Q
4 elements that dont usually form ions and why
A
beryllium, carbon, boron , silicon
requires a lot of energy to transfer outer electrons/ ionisation energy
