Question

Correct answer will be marked as brainliest;


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I will report if you write anything else than answer​

Answer 1

1. alpha particles and have almost 100 times better penetrating power than alpha particles.
2. A synthetic element is one of 24 chemical elements that do not occur naturally on Earth: they have been created by human manipulation of fundamental particles in a nuclear reactor, a particle accelerator, or the explosion of an atomic bomb; thus, they are called "synthetic", "artificial", or "man-made"
3. Control rods are made up of cross-section to stop neutrons of various energies. Control Rods are made up of Boron, Cadmium, Silver and Indium to control the rate of nuclear fission.