Respuesta :

Answer:

5.62 x 10^-7 sec-1

Explanation:

Converting days to seconds:

14.26 x 24x60x60= 1.27 x 10^6

Half life= 0.693 / Decay constant

so

Decay constant = 0.693/1.27x 10^6

= 5.62 x 10^-7