A scientist performs an experiment in which a radium–226 (Ra–226) atom decays into radon–222 (Rn–222). The scientist concludes t

Question

3 years ago

8

A scientist performs an experiment in which a radium–226 (Ra–226) atom decays into radon–222 (Rn–222). The scientist concludes t

hat some energy must have been added to the system to cause this reaction to begin. Which would disprove his conclusion?
A) Radium–226 is an unstable isotope of radium.
B) Radon–222 is an unstable isotope of radon.
C) The decay released an alpha particle.
D) The decay released a beta particle and a gamma ray.

Chemistry

2 answers:

Agata [3.3K] · Answer 1 · 2022-06-12T11:46:41+03:00

Agata [3.3K]3 years ago

8 0

Answer:

A) Radium-226 is an unstable isotope of radon

Explanation:

This was correct on my test

tangare [24] · Answer 2 · 2022-06-12T09:50:05+03:00

tangare [24]3 years ago

5 0

Answer:

B)

Explanation: