Isotopes

Front

What determines the identity of an atom? Options: proton, neutron, valence electron, protons and neutrons

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proton

Front

Gaining or losing protons in an atom changes its...

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identity. It becomes a different element.

Front

Gaining or losing neutrons in an atom changes its...

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isotope type.

Front

In the notation ²⁸⁹₁₁₅ Mc, the number 289 is the

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mass number

Front

How many protons does this isotope of titanium have? Options: 48, 22, 26, 70

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22

Front

How many neutrons does this isotope of titanium have? Options: 48, 22, 26, 70

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26

Front

The name of this isotope of titanium is: titanium-48, titanium-22, titanium-26

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titanium-48

Front

Iodine-129 has _ protons

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53

Front

Iodine-129 has _ neutrons

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76

Front

24.1% of all the isotopes of an element have a mass of 75.23 u, 48.7% have a mass of 74.61 u, and 27.2% have a mass of 75.20 u. What is the average atomic mass of this element?

Back

74.92 u