!Help Meee! Possible Planets/Celestial Bodies: For the Key Characteristics of an element? I will list things about the element and you tell me where it could have come from.

Question

anonymous · Answer

1. The sample contains more than one 
element.
2. The sample seems to be radioactive.

3. The sample is estimated to have 
formed close to 4,600 million years ago.

4. The source can be found no more 
than 4.54 billion kilo meters from the 
sun.
5. The source was exposed to an 
atmosphere.---That's all

anonymous · Answer

asrry wrng question

agreene · Answer

well Neptune and inward are the only options for this since its ~31 AU from the sun.

99.999999999999999998% of things in the solar system are radioactive (even you)
4.6 GA dates it to the Hadean, thus being the beginning of our planet (as we know it).

I feel like if this is an "element" then the question is incorrect because of that last bit... nowhere close to our sun had an atmosphere 4.6 Billion years ago....

agreene · Answer

also, you can eliminate all the asteroids / comets as well as Mercury and the sun because they dont have atmospheres