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Diagram 1 represents an atom of hydrogen, showing the nucleus and the electron in the first shell. What is represented by diagram 2?

NY Regents Chemistry Exam August 2023 Question 31


31 Diagram 1 represents an atom of hydrogen, showing the nucleus and the electron in the first shell. What is represented by diagram 2?


Diagram 1 represents an atom of hydrogen, showing the nucleus and the electron in the first shell. What is represented by diagram 2?
Diagram 1 represents an atom of hydrogen, showing the nucleus and the electron in the first shell. What is represented by diagram 2?

(1) a positive ion of hydrogen

(2) a negative ion of hydrogen

(3) an atom of hydrogen in an excited state

(4) an atom of hydrogen in the ground state



Solution: Looking at the diagram 1 and diagram 2, we can see that the electron moved from the shell next to the nucleus to the outer shell. When an electron goes from a ground energy level to a higher energy level, it is called an excited state. Choice 3

Choice 3


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