All Questions must be 3-6 Sentences, and include correct capitalization or punctuation.

Question

• All set up and steps of work must be shown
• Answer MUST INCLUDE correct sig figs and correct units
• All MOLAR MASSES MUST be calculated with NO rounding from the periodic table.
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All Questions must be 2-5 Sentences, and include correct capitalization or punctuation.
• All set up and steps of work must be shown
• Answer MUST INCLUDE correct sig figs and correct units
• All MOLAR MASSES MUST be calculated with NO rounding from the periodic table.
_____



Question 3 & 4A and 4B are combined.
234. 234
235. X → 91 y+Z

Question 3: Identify X, Y and Z. Must use simple math to show work and explain how many protons, neutrons, and electrons each of the products and reactants have to demonstrate that both sides of the reaction meet the requirement of conservation of mass. (class notes have example problems)
Question 4A: Explain what type of nuclear reaction has occurred and what particle is emitted. Only correct answers and in Sig Figs.
Question 4B: Has transmutation occurred, what type be specific?

Answer 1

For Question 3:
X = 186, Y = 91 (protons), Z = 143 (neutrons). X (234) breaks down into Y (protons) and Z (neutrons). The total number of protons and neutrons remain the same on both sides of the reaction, demonstrating conservation of mass.
For Question 4A: Alpha decay has occurred, with the emission of an alpha particle.
For Question 4B: Transmutation has occurred, specifically alpha decay.