Answer: 0.052torr
Explanation: Please see attachment for explanation
The answer is D they have 4 neutrons
Answer:
473 year
Explanation:
Using integrated rate law for first order kinetics as:
Where,
is the concentration at time t
is the initial concentration
Given:
To reach 12.5% of reactant means that 0.125 of
is decomposed. So,
= 0.125
t = ?
t = 473 year
Ni (Nickel) is the best conductor, and in fact the only conductor, in that list