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3 years ago

I need sum help on this

Chemistry

1 answer:

natka813 [3]3 years ago

8 0

Answer:

Protons and Neutrons

Explanation:

Neutrons and protons constitute almost all of an atom's mass. The third type of stable particle is the electron. Electrons have a negative charge but are extremely small and have a mass only 1/1850 that of a proton or neutron. They are so small that for practical purposes they do not contribute to the mass of the atom.

I hope this helped!

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The most common isotopic forms of hydrogen are ordinary hydrogen (1H) and deuterium (2H), which have percent compositions of 99.

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Answer:

0. 000115

Explanation:

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For the isotopic forms:

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99.98% / 100 = 0.9998 → As decimal form.

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0.0115% / 100 = <em>0. 000115</em>→ As decimal form.

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Answer:

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