Worth 10 points

select the best answer.

used cement to create an amazing system of highways.

greece

rome

egypt

Rome did i just did a project then a test with this same question yesterday and got it right

it forms an anion that has a larger radius. anions have a negative charge and are larger than the original atom.

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the atomic number of carbon is six, which means that a carbon atom has six protons. carbon has three naturally occurring isotopes: carbon-12, carbon-13, and carbon-14. which of these statements are true about carbon and its isotopes? select all that appl