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Diano4ka-milaya [45]
3 years ago
15

Our understanding of the atom has changed over time. Which idea that was once accepted is now considered scientifically inaccura

te? The nucleus is the center of the atom. An atom is a solid sphere. Electrons have a negative charge. Electrons are arranged in layers.

Physics
2 answers:
Tanzania [10]3 years ago
7 0
“The atom is a solid sphere” is the inaccurate statement. The center of the atom is made up of the nucleus with layers of electrons orbiting it, therefore it is not a complete sphere.

SOVA2 [1]3 years ago
3 0

Answer:

correct answer is option b (An atom is a solid sphere)

Explanation:

option 1

option 1 is scientifically accurate because nucleus is the center of the atom

option 2

option 2

option 2 is scientifically inaccurate because inside an atom nucleus is at the center and electrons are filled in the orbitals around the nucleus so an atom is not solid sphere.

option 3

option 3 is scientifically accurate because electrons have a negative charge

option 4

option 4 is scientifically accurate because electrons are filled in orbitals.

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Wow !  This one could have some twists and turns in it.
Fasten your seat belt.  It's going to be a boompy ride.

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================================================

I'm thinking that this must  be the hard way to do it,
because I noticed that

       (weight in air) / (buoyant force) =  185N / 30N = <u>6.1666...</u>

So apparently . . .

        (density of a sample) / (density of water) =

                                  (weight of the sample in air) / (buoyant force in water) .

I never knew that, but it's a good factoid to keep in my tool-box.


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