During World War I radium-226 was used in the manufacturing of luminous paint. If it takes 2.12 x 104 days for its degradation to be 2.49% complete, what is its decay constant?
A
1.74 x 10–4 days–1
B
1.08 x 10–5 days–1
C
1.19 x 10–6 days–1
D
2.14 x 10–5 days–1
Watch next
Master Rate of Radioactive Decay with a bite sized video explanation from Jules Bruno