In the nitrite ion (NO2-), . A) both bonds are single bonds B) both bonds are double bonds C) one bond is a double bond and the other is a single bond D) both bonds are the same E) there are 20 valence electrons

B) Both bonds are double bonds

Explanation:

For nitrite ion, oxygen reacts with nitrogen oxide which is joined by a double bond to form nitrite ion.

Now, nitrite ion cannot have an expanded octet and thus both bonds will be the same with each bond being stronger and shorter than a single bond but they will be longer and weaker than a double bond.

120,630,890

step-by-step explanation:

110+10=120,620+10=630,880+10=890

the answer would be a