0.84 milligrams of a 2. 000 mg sample remain after 6. 55 years, according to radioactive decay.
Given data,

amount of sample = 2.000mg initially = 0.002grams
According to radioactive decay,

(
)λ =
=
= 0.133
According to radioactive decay,

- λt
= ln0.002 - (0.133×6.55)
= -6.21 - 0.87 = -7.08 = 0.00084g = 0.84mg
Therefore, 0.84 milligrams of a 2. 000 mg sample remain after 6. 55 years.
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Answer:
An ionic bond is formed by the complete transfer of some electrons from one atom to another. The atom losing one or more electrons becomes a cation or a positively charged ion. The atom gaining one or more electrons becomes an anion which is a negatively charged ion.
Answer:
Sediment forms when any type of rock is weathered, a process driven by energy from the sun. Magma forms when any type of rock is melted, a process driven by energy from Earth's inter
Explanation:
Option 3 is your answer
Weather describes daily conditions and climate describes averages
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