18 B 19 C and 20 A
cuz that's it I hope it helps you
Nuclear energy comes from splitting of Barium atom to form Krypton atom
I got 134.91 but if you round it you’ll get 135
Answer:More of the radioactivity is lost during the first half-life than in later half-lives.
Explanation: Passed test with 98
It is one of the most common types of chemical reactions and can also be called a synthesis reaction. In this reaction, two or more chemical species combine to form a more complex product.