Question

Which of the following statements is incorrect about the structure of an atom? *

1 point

The whole mass of an atom is concentrated in the nucleus

The atom is an indivisible particle

The atom as a whole is neutra

electrons revolve around nucleus in fixed energy orbits

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Answer 1

Answer:

Option 1 is false. Do follow do mark as brainliest

Answer 2

The incorrect statement about the structure of an atom is the whole mass of an atom is concentrated in the nucleus.

• In an atom, only 99.9% of the mass is concentrated in the nucleus. This is because the nucleus is composed of neutrons and protons that are much heavy than electrons.
• The electrons contribute only 0.01% to the mass of an atom.
• According to Dalton's Theory, an atom is the smallest possible particle (indivisible particle).
• An atom has an equal number of electrons and protons and thus is electrically neutral.