A student drew a diagram of the quantum model of an atom, as shown. Which of the following explains if the student's diagram is correct or incorrect? The diagram is incorrect because electrons follow orbital rings around the nucleus

The diagram is incorrect because there is only a single type of particle at the center of the atom

The diagram is correct because electrons are present in a negatively charged cloud outside the nucleus

The diagram is correct because all electrons can be accommodated in two electron clouds around the nucleus

- "the choice that is not an indicator of a chemical change is "state of matter changes". more common than not, chemical reactions produce energy in the form of light or heat. along with energy, they also produce a new substance called the product that could be in any state of matter (solid, gas, or liquid)."

atomic mass = 39

number of neutrons = 20

number of protons= 19

electronic configuration = 1s2 2s2 2p6 3s2 3p6 4s1

the number of electron in first shell = 2

number of electrons in n=3 shell = 8

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