Engineering Board Exam Reviewer · Chemistry · medium
When 14C (Z = 6) undergoes beta-minus decay, the product nucleus is:
- 14B (Z = 5)
- 13C (Z = 6)
- 14N (Z = 7)
- 10Be (Z = 4)
Answer
C. 14N (Z = 7)
Solution
Beta-minus emission increases Z by 1 and leaves A unchanged.
More Chemistry questions
- When 238U (Z = 92) emits an alpha particle, the product nucleus is:
- In a standard reduction potential table, the species with the most positive E° is the:
- In the reaction Zn + Cu2+ Zn2+ + Cu, which species is oxidized?
- What is the oxidation number of nitrogen in NH3?
- What is the oxidation number of chromium in K2Cr2O7?
- What is the oxidation number of manganese in KMnO₄?
- What is the oxidation number of sulfur in H2SO4?
- What is the standard Gibbs free energy change for the Daniell cell reaction (n = 2, E°cell = 1.10 V)? (F = 96,485 C/mol)
- How long must a current of 5 A flow to deposit 10 g of silver from a AgNO₃ solution? (Ag = 108, F = 96,485 C/mol)
- How many grams of copper are deposited from a CuSO₄ solution by a current of 2 A flowing for 1 hour? (Cu = 63.5, F = 96,485 C/mol)