Consider all the elements in the periodic table. The stair-step line between the pink squares and the yellow squares separates t
he _______ (pink) from the _______ (yellow)
A. Gasses; solids
B. Metals; nonmetals
C. Nonmetals; metals
D. Reactive; nonreactive
A. Gasses; solids
B. Metals; nonmetals
C. Nonmetals; metals
D. Reactive; nonreactive
1 answer:
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The mass decay rate is of the form
where
m₀ = 3000 g,the initial mass
k = the decay constant
t = time, years.
Because the half-life is 30 years, therefore
After 60 years, the mass remaining is
Answer: 750 g
where
m₀ = 3000 g,the initial mass
k = the decay constant
t = time, years.
Because the half-life is 30 years, therefore
After 60 years, the mass remaining is
Answer: 750 g