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Which of the following statements does not describe the structure of an atom?

Inside the nucleus of an atom are protons and neutrons.
Protons are positively charged sub-atomic particles.
Electrons are negatively charged sub-atomic particles.
Most of the mass of an atom comes from the electron cloud.

Respuesta :

KOOLKOPS

Answer:

Most of the mass of an atom comes from the electron cloud

Explanation:

Protons are positive, Electrons are negative, and there are only protons and neutrons in the nucleus of an atom. Also there are only 6 electrons in a electron cloud and the mass of an electron is 1/1,836 the mass of a proton. So it would be the last answer.

dsdrajlin

Regarding the structure of an atom, it is false that most of the mass of an atom comes from the electron cloud.

Let's consider which of the following statements does not describe the structure of an atom.

  • Inside the nucleus of an atom are protons and neutrons. TRUE. The nucleus is formed by protons and neutrons surrounded by the electron cloud.
  • Protons are positively charged sub-atomic particles. TRUE. The relative charge of protons is +1.
  • Electrons are negatively charged sub-atomic particles. TRUE. The relative charge of electrons is -1.
  • Most of the mass of an atom comes from the electron cloud. FALSE. The mass of electrons is negligible in comparison with protons and neutrons. Most of the mass of the atom comes from the nucleus.

Regarding the structure of an atom, it is false that most of the mass of an atom comes from the electron cloud.

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