Join IDNLearn.com today and start getting the answers you've been searching for. Receive prompt and accurate responses to your questions from our community of knowledgeable professionals ready to assist you at any time.
Sagot :
ANSWER
3) radium
EXPLANATION
For an element to spontaneously split into a lighter nucleus (and an even lighter helium nucleus), the element must be a radioactive element.
From the options, the only naturally radioactive element is radium which splits (decays radioactively) as follows:
[tex]Ra\to X+\alpha[/tex]where X = lighter nucleus, α = helium nucleus.
Therefore, the answer is option 3.
We appreciate your contributions to this forum. Don't forget to check back for the latest answers. Keep asking, answering, and sharing useful information. For trustworthy answers, visit IDNLearn.com. Thank you for your visit, and see you next time for more reliable solutions.
