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Cora wants to draw a model of an atom for her project for the science fair. she wants to draw an atom that has two protons, four neutrons, and two electrons. which model is like cora’s? at the center, 2 unmarked red balls are interspersed with 4 blue balls marked with plus signs. a green cloud with 1 concentric white line surrounds the center, with 2 small green balls marked with minus signs on the white line. at the center, 4 unmarked red balls are interspersed with 2 blue balls marked with plus signs. a green cloud with 1 white line surrounds the center, with 2 small green balls marked with minus signs on the white line. at the center, 2 unmarked red balls are interspersed with 2 blue balls marked with plus signs. a green cloud with 1 white line surrounds the center, with 4 small green balls marked with minus signs on the white line. at the center, 4 unmarked red balls are interspersed with 2 blue balls marked with plus signs. a green cloud with 1 white line surrounds the center, with 4 small green balls marked with minus signs on the white line.

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Naomiokoh17

If Cora draws a model of an atom with two protons, four neutrons and two electrons, it will look like this; a green cloud with 1 concentric white line that surrounds the center, with2 small green balls marked with minus signs. At the center of her model, she will draw 4 unmarked red balls interspersed with 2 blue balls marked with plus signs.

The options to your question seems clustered, but if separated, I'm sure this is what it would look like;

A.) at the center, 2 unmarked red balls are interspersed with 4 blue balls marked  with plus signs.

B.)a green cloud with 1 concentric white line surrounds the center, with 2 small green balls marked with minus signs on the white line. at the center, 4 unmarked red balls are interspersed with 2 blue balls marked with plus signs

C.)a green cloud with 1 white line surrounds the center, with 2 small green balls marked with minus signs on the white line. at the center, 2 unmarked red balls are interspersed with 2 blue balls marked with plus signs.

D.) a green cloud with 1 white line surrounds the center, with 4 small green balls marked with minus signs on the white line. at the center, 4 unmarked red balls are interspersed with 2 blue balls marked with plus signs.

E.)a green cloud with 1 white line surrounds the center, with 4 small green balls marked with minus signs on the white line.

When arranged like this, the answer to the question will be option B. The green cloud represents the nucleus of the model atom. The white line that surrounds the green cloud ( nucleus ) represents the orbit or shell. Therefore, the small green balls marked with minus signs are the electrons, as they are negatively charged and are found on the orbit/shell of an atom.

The unmarked red ball at the center of the model represents the neutron. Neutrons have no charge which is shown by the red balls not being marked by any sign.  The blue balls marked with a plus sign are the protons since they are positively charged.

The atom Cora wants to draw contains two protons, four neutrons and two electrons, therefore her model will contain 2 small green balls marked with minus sign as the electrons, 4 unmarked red balls as the neutrons and 2 blue balls with a plus sign as the protons. Hence the answer is option B.

To learn more about drawing atomic models, check out;

https://brainly.com/question/18122402

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