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mr_godi [17]
4 years ago
12

What is the difference between a stable isotope and radioactive isotopes?

Chemistry
2 answers:
Tems11 [23]4 years ago
5 0

<u>Answer:</u> The correct answer is Option D.

<u>Explanation:</u>

Isotopes are defined as the chemical species which have same atomic number but differ in mass number.

Stable isotopes are defined as isotopes which does not undergo decay process. They have more half life. They are known as non-radioactive isotopes.

Radioactive isotopes are defined as the isotopes which undergo decay processes very easily. They have very short half life. They are usually the isotopes of heavier elements.

Hence, the correct answer is Option D.

Nezavi [6.7K]4 years ago
4 0
An isotope<span> is a variation of the same element with a </span>different<span> number of neutrons in their nucleus. </span>Isotopes<span> can be classified as either </span>stable<span> or </span>unstable<span>. An </span>unstable isotope<span> undergoes </span>radioactive<span> decay meaning it looses energy over time while emitting </span>radiation<span>.</span>
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4 years ago
1. What is the apparatus used to measure production in plants ?
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5 0
2 years ago
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A hypothetical element has an atomic weight of 48.68 amu. It consists of three isotopes having masses of 47.00 amu, 48.00 amu, a
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Explanation :

Average atomic mass of an element is defined as the sum of masses of each isotope each multiplied by their natural fractional abundance.

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As we are given that,

Average atomic mass = 48.68 amu

Mass of heaviest-weight isotope = 49.00 amu

Let the percentage abundance of heaviest-weight isotope = x %

Fractional abundance of heaviest-weight isotope = \frac{x}{100}

Mass of lightest-weight isotope = 47.00 amu

Percentage abundance of lightest-weight isotope = 10 %

Fractional abundance of lightest-weight isotope = \frac{10}{100}

Mass of middle-weight isotope = 48.00 amu

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Fractional abundance of middle-weight isotope = \frac{(90-x)}{100}

Now put all the given values in above formula, we get:

48.68=[(47.0\times \frac{10}{100})+(48.0\times \frac{(90-x)}{100})+(49.0\times \frac{x}{100})]

x=78\%

Therefore, the percent abundance of the heaviest isotope is, 78 %

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3 years ago
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