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Andru [333]
3 years ago
7

How do you find the mass number of an isotope?

Chemistry
1 answer:
solong [7]3 years ago
8 0

Answer:

The mass number of an isotope is the total number of protons and neutrons in an atomic nucleus. If you know that a nucleus has 6 protons and 6 neutrons, then its mass number is 12. If the nucleus has 6 protons and 7 neutrons, then its mass number is 13.

Explanation:

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The atomic mass on the periodic table represents the sum of number of protons and number of neutrons.

Atomic mass = Number of protons + number of neutrons

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How does evolution relate to tectonic plate movement?
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Answer:

Below!

Explanation:

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3 years ago
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3 years ago
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I need help on this please
Montano1993 [528]

Answer:

3

Explanation:

There are three different elements in given chemical equation. These elements are hydrogen, oxygen and carbon.

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This equation shows the burning of methane. When methane burns in the presence of oxygen it produced water and carbondioxide.

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This reaction also follow the law of conservation of mass.

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