These are the chords for the live acoustic version of radioactive which is 
different to the recorded version.

Chords: Abm,B,F#,C#

You can also use Am,C,G and D if you down tune your guitar by a half step.

Note: If you wish to play it like the recorded version use the chords 
Bm,D,A,E ( Or Am,C,G,D with A capo on the second fret)

The same chords are used throughout with very little change

Hope this helps!

Abm (133111@4)        B (x2444x@1)             F#I'm (244322@1)waking up to ash and dust
              C# (x43121@1)               AbmI (133111@4)wipe my brow and I sweat my rust
               B (x2444x@1)           F# (244322@1)    STOP
I'm breathing in the chemicals   (DEEP INHALE)
Abm (133111@4)          B (x2444x@1)          F# (244322@1)            C# (x43121@1)                AbmI'm (133111@4)breaking in, shaping up, then checking out on the prison bus
         B (x2444x@1)             F#This (244322@1)is it, the apocalypse
 C#Whoa (x43121@1)
Abm (133111@4)       BI'm (x2444x@1)waking up, I feel it in my bones
F# (244322@1)                  C#Enough (x43121@1)to make my systems blow
 Abm (133111@4)                 BWelcome (x2444x@1)to the new age, to the new age
 F# (244322@1)                 C#Welcome (x43121@1)to the new age, to the new age
 Abm (133111@4)   B (x2444x@1)     F# (244322@1)          C#Whoa, (x43121@1)whoa, I'm radioactive, radioactive
 Abm (133111@4)   B (x2444x@1)     F# (244322@1)          C#Whoa, (x43121@1)whoa, I'm radioactive, radioactive

(Abm,B,F#,C#)x2

(same pattern through next verse and chorus)

I raise my flags, dye my clothes
It's a revolution, I suppose
We'll paint it red to fit right in
Whoa
I'm breaking in, shaping up, then checking out on the prison bus
This is it, the apocalypse
Whoa

I'm waking up, I feel it in my bones
Enough to make my systems blow
Welcome to the new age, to the new age
Welcome to the new age, to the new age
Whoa, whoa, I'm radioactive, radioactive
Whoa, whoa, I'm radioactive, radioactive

(straight into bridge-mute the strings with your palm for this part)

Abm (133111@4)         B (x2444x@1) F# (244322@1)        C#All (x43121@1)systems go, sun hasn't died
Abm (133111@4)         B (x2444x@1)  F# (244322@1)            C#Deep (x43121@1)in my bones, straight from inside

(Chorus as usual)

I'm waking up, I feel it in my bones
Enough to make my systems blow
Welcome to the new age, to the new age
Welcome to the new age, to the new age
Whoa, whoa, I'm radioactive, radioactive
Whoa, whoa, I'm radioactive, radioactive

(Abm,B,F#,C#)x2+

THE END!!!!! =D