Radioactive Decay

Question 1

radioactive decay

Answer 1

• most atoms have radioactive isotopes

- the way the atoms reduce their energetic form by giving of particles

Question 2

208^Pb_82

Answer 2

• 82 protons
• 126 neutrons
• unstable balance

Question 3

alpha radiation

Answer 3

• contains particles with 2 protons, 2 neutrons and 0 electrons
• since it has no electrons it has a 2+ charge
• 226^Ra_88 - 222^Rn_86 + 4^He_2
• -2, -4

Question 4

transmutation

Answer 4

• the conversion of an atom of one element to an atom of another through nuclear reactions. Induced nuclear transmutation is transmutation which is induced by scientists by striking the nuclei with high volume particles.

Question 5

beta radiation

Answer 5

• contains particles that are equivalent to electrons in mass with a 1- charge
• 1^n_0 = 0^e_1 + 1^p_1
• 14^C_6 = 14N_7 + 0^e_-1
• +1, no change

Question 6

positron decay

Answer 6

• a subtype of radioactive decay called beta decay, in which a proton inside a radionuclide nucleus is converted into a neutron while releasing a positron and an electron neutrino (νe)
• -1, no change

Question 7

gamma radiation

Answer 7

• very high in energy, bus has no mass (gamma ray)
• it usually accompanies other types of radioactive decay
• 238^U_92 - 234^Th_90 + 4^He_2 + 2^0_0gamma
• no change in atomic number or mass