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REY [17]
2 years ago
9

Explain why the atomic mass of an element is weighted average mass

Physics
1 answer:
madreJ [45]2 years ago
3 0

Explanation:

The mass written on the periodic table is an average atomic mass taken from all known isotopes of an element. This average is a weighted average, meaning the isotope's relative abundance changes its impact on the final average. The reason this is done is because there is no set mass for an element.

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An athlete stretches a spring an extra 40.0 cm beyond its initial length. How much energy has he transferred to the spring, if t
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Answer:

<h2>b) 4230 J </h2>

Explanation:

Step one:

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Step two:

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An infinite sheet of charge, oriented perpendicular to the x-axis, passes through x = 0. It has a surface charge density σ1 = -2
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Answer:

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