Answer: 2.23 grams
Explanation:
Radioactive decay follows first order kinetics.
Half-life of Phosphorus-32 = 14.3 days
N = amount left after time t= ?
= initial amount = 10.0 g
= rate constant=
t= time = 30 days
Answer:
x=5
4x+3=23
4x=23-3
4x=20
4x/4=20/4
Proton:20
Electrons:20 (18 if wanted balance electron)
Mass:40
Ca²+