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Westkost [7]
3 years ago
9

When elements are more stable in a combined form, which of the following forms?

Chemistry
2 answers:
Dima020 [189]3 years ago
4 0
When elements are combined together, they form compounds
Alex17521 [72]3 years ago
3 0
<span>An atom is the most basic form of life. Also, an atom can represent an element. The element can be different such as oxygen, nitrogen, everything that is present in the periodic table. We can also classify an element into a metal, nonmetal or metalloid. The very core of an atom is the nuclei. Protons and neutrons are present inside the nuclei.  A combination of elements is a compound. When formed, they can be very stable. The answer is D.</span>
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The half life for the decay of carbon- is years. Suppose the activity due to the radioactive decay of the carbon- in a tiny samp
EleoNora [17]

The question is incomplete. The complete question is:

The half-life for the decay of carbon-14 is 5.73x10^3 years. Suppose the activity due to the radioactive decay of the carbon-14 in a tiny sample of an artifact made of woodfrom an archeological dig is measured to be 2.8x10^3 Bq. The activity in a similiar-sized sample of fresh wood is measured to be 3.0x10^3 Bq. Calculate the age of the artifact. Round your answer to 2 significant digits.

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The activity of the fresh sample is taken as the initial activity of the wood sample while the activity measured at a time t is the present activity of the wood artifact. The time taken for the wood to attain its current activity can be calculated from the formula shown in the image attached. The activity at a time t must always be less than the activity of a fresh wood sample. Detailed solution is found in the image attached.

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