Neutral atoms belonging to the same element always have the same number of protons and electrons. This is because the number of protons (which is the atomic number) defines the element, and in a neutral atom, the number of electrons equals the number of protons to balance the charge.

So, the correct answer is C: The same number of electrons.

However, it's important to note that they also have the same number of protons (not mentioned in the options), as this is what fundamentally defines an element.

The number of neutrons can vary, leading to different isotopes of the same element. The atomic mass (option A) also can vary as it depends on the number of protons and neutrons.

Option B is incorrect because the number of protons + neutrons (the mass number) can vary among atoms of the same element due to the existence of isotopes.

Question

Neutral atoms belonging to the same element always have the same number of protons and electrons. This is because the number of protons (which is the atomic number) defines the element, and in a neutral atom, the number of electrons equals the number of protons to balance the charge.

So, the correct answer is C: The same number of electrons.

However, it's important to note that they also have the same number of protons (not mentioned in the options), as this is what fundamentally defines an element.

The number of neutrons can vary, leading to different isotopes of the same element. The atomic mass (option A) also can vary as it depends on the number of protons and neutrons.

Option B is incorrect because the number of protons + neutrons (the mass number) can vary among atoms of the same element due to the existence of isotopes.

Knowee AI · Accepted Answer

Neutral atoms belonging to the same element always have the same number of protons and electrons. This is because the number of protons (which is the atomic number) defines the element, and in a neutral atom, the number of electrons equals the number of protons to balance the charge.

So, the correct answer is C: The same number of electrons.

However, it's important to note that they also have the same number of protons (not mentioned in the options), as this is what fundamentally defines an element.

The number of neutrons can vary, leading to different isotopes of the same element. The atomic mass (option A) also can vary as it depends on the number of protons and neutrons.

Option B is incorrect because the number of protons + neutrons (the mass number) can vary among atoms of the same element due to the existence of isotopes.

Neutral atoms belonging to the same element always have:AThe same Atomic Mass.BThe same number of protons + neutrons.CThe same number of electrons.DThe same number of neutrons.

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