Author Question: Determine how much energy is released when thorium-230 decays according to . [Atomic masses: ... (Read 44 times)

camac77 · **on:** Nov 5, 2023

Question 1

Determine how much energy is released when polonium-210 decays according to

. [Atomic masses: polonium-210 = 209.982857 amu; helium-4 = 4.002603 amu; lead-206 = 205.974449 amu]
◦ 4.14 × 10⁹ kJ/mol
◦ 7.20 × 10¹¹ kJ/mol
◦ 5.22 × 10⁸ kJ/mol
◦ 4.66 × 10⁹ kJ/mol
◦ 6.43 × 10¹² kJ/mol

Question 2

Determine how much energy is released when thorium-230 decays according to

. [Atomic masses: thorium-230 = 230.033127 amu; helium-4 = 4.002603 amu; radium-226 = 226.025403 amu]
◦ 3.98 × 10⁹ kJ/mol
◦ 4.60 × 10⁸ kJ/mol
◦ 7.20 × 10¹¹ kJ/mol
◦ 4.90 × 10⁹ kJ/mol
◦ 7.15 × 10¹¹ kJ/mol

marufp · **Reply #1 on:** Nov 5, 2023

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