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elixir [45]
3 years ago
8

A tool to measure forces such as weight or friction

Chemistry
1 answer:
12345 [234]3 years ago
6 0
It would probably be a balance or scale
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Explanation:

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Which answer is an isotope of 40/20x? <br><br> Question Pictured here:
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An isotope of ₂₀⁴⁰X  ⇒₂₀⁴⁴X

<h3>Further explanation </h3>

The elements in nature have several types of isotopes

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So Isotopes are elements that have the same Atomic Number (Proton)

In the following element notation,

\large {{{A} \atop {Z}} \right X}

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  = number of protons + number of neutrons

Z = atomic number

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For symbol of isotope X :

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A. ₄₀²⁰X : atomic number = 40, mass number = 20, neutrons=20

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C. ₂₁⁴⁰X : atomic number = 21, mass number = 40, neutrons=19

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2 years ago
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3 years ago
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