# Percent Abundance Calculator

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## What is Percent Abundance Calculator?

A Percent Abundance Calculator is a tool used to calculate the percentage of an isotope present in an element’s naturally occurring sample. It uses a simple formula to determine the relative abundance of different isotopes based on their atomic mass and the mass of the element.

**Formula**

The formula used to calculate the percent abundance is:

Percent Abundance = (Mass of Isotope / Average Atomic Mass) x 100%

For example, let’s say you have an element with an average atomic mass of 20 grams and a mass of the isotope of 16 grams. You can calculate the percent abundance using the formula:

Percent Abundance = (16 g / 20 g) x 100% = 80%

This means that 80% of the element’s naturally occurring sample is composed of the isotope with a mass of 16 grams.

**Calculation**

To calculate the percent abundance of an isotope, follow these steps:

- Find the average atomic mass of the element.
- Determine the mass of the isotope you want to find the percent abundance for.
- Plug these values into the formula: Percent Abundance = (Mass of Isotope / Average Atomic Mass) x 100%
- Calculate the result and express it as a percentage.

**FAQs**

**What is percent abundance?**

Percent abundance is the relative amount of a particular isotope in an element’s naturally occurring sample, expressed as a percentage of the total mass of the element.

**Why is percent abundance important?**

Percent abundance is important in determining the atomic weight of an element, which is used in many scientific calculations and experiments.

**How is percent abundance measured?**

Percent abundance is typically measured through mass spectrometry, a technique that separates isotopes based on their mass-to-charge ratio.

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