Question

Aluminum-26, which decays into magnesium-26, has a half-life

of approximately 720 000 years. Use this information to answer

Questions 6 and 7.

6. (a) What type of decay does Al-26 undergo?

(b) Does Al-26 decay in the same way as C-14?

Explain.

Answer 1

a)

$\beta-decay,$

b)

$_{13}^{26}Al+_{-1}^0e\to _{12}^{26}Mg.$