If it has a positive charge it is a cation if negative it is an anion .
I attached a chart that will help you know the charges of the elements
What causes water to runoff
2 answers:
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Answer: 2948
Explanation:
Half life is the amount of time taken by a radioactive material to decay to half of its original value.
Expression for rate law for first order kinetics is given by:
where,
k = rate constant =
t = age of sample = ?
a = let initial amount of the reactant = 100
a - x = amount left after decay process =
Thus the fossil is 2948 years old.