Exam 6 April 2014 PDF

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α γ

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γ γ

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(c) The nucleus loses excess energy. The mass number and atomic number remain unchanged 3. (a) Alpha (b) Gamma (c) Beta (d) Alpha (e) Gamma (f) Beta

(b) chlorine-37 37 (c) 17 Cl 3. (a) 11 (b) 21 (c) sodium-21 21 (d) 11 Na

(b) (c) (d) 2. (a) (b) (c) (d)

89Ac 204 82Pb 252 101 Md 225 89Ac 24 12Mg 201 79Au 52 26Fe 6 3Li

the same as a helium nucleus. The mass number drops 4 units and the atomic number drops 2 units. (b) The nucleus releases an electron while a neutron turns into a proton. The mass number remains the same while the atomic number increases by one....