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Stolb23 [73]
3 years ago
12

The activity of a radioactive substance depends on ?​

Chemistry
1 answer:
Lelechka [254]3 years ago
7 0

Answer:

The activity of a radioactive substance is measured in terms of the number of disintegrations a given radioactive sample undergoes in one second. ... More the active atoms present in the ample, more is the number of disintegrations that happen per second. It depends on the decay constant of the radioactive substance.

Explanation:

citation- https://www.quora.com/What-does-the-activity-of-a-radioactive-substance-depend-on

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A frequency of 60 MHz is close to the lower end of the old VHF-TV band.


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given two equations representing reactions: which type of reaction is represented by each of these equations?
Sergeeva-Olga [200]

Answer:

Equation 1 - nuclear fission

Equation 2 - nuclear fusion

Explanation:

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Nuclear fusion is a reaction in which two light nuclei combine in order to form a larger nuclei. This is clearly depicted in equation 2 as shown in the question.

7 0
2 years ago
Convert 675 nanograms to milligrams.
STALIN [3.7K]

675 nanograms is equivalent to 6.75 × 10-⁴ milligrams.

<h3>How to convert nanograms to milligrams?</h3>

Nanograms is a unit of mass equal to 0.000000001 grams and has a symbol of ng.

On the other hand, milligrams is another unit of mass equal to 0.001grams and has a symbol of mg.

Nanograms and milligrams are both units of mass and can be inter-convertible as follows:

1 nanogram = 1 × 10-⁶ milligram

According to this question, 675 nanograms is equivalent to 675 × 10-⁶ milligrams.

Therefore, 675 nanograms is equivalent to 6.75 × 10-⁴ milligrams.

Learn more about milligrams at: brainly.com/question/20320382

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What is number 1 for b, c, and d?
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