Answer:
The answers would be 5.42 and 5.1.
Step-by-step explanation:
The diagram shows 5.39, so those answers would be more than the diagram shows.
It’s 225,000,000= 225 million
Answer:
a
Step-by-step explanation:
the answer is a as proven by the othee options being false
Answer:
Step-by-step explanation:
The different isotopes have different "half-lives" – the time it takes to lose half of its radioactivity. Pu-239 has a half-life of 24,100 years and Pu-241's half-life is 14.4 years. Substances with shorter half-lives decay more quickly than those with longer half-lives, so they emit more energetic radioactivity.
