Question
which statement best describes the arrangement of electrons in an atom of fluorine?
A. there are 2 electrons in the first energy level and 5 in the second
B. There are 2 electrons in the first energy level and 7 in the second
C. there are 7 electrons in the first energy level and 2 in the second
D. there are 5 electrons in the first energy level and 2 in the second
A. there are 2 electrons in the first energy level and 5 in the second
B. There are 2 electrons in the first energy level and 7 in the second
C. there are 7 electrons in the first energy level and 2 in the second
D. there are 5 electrons in the first energy level and 2 in the second
Answers
Answered by
GPT-4o mini
The correct statement that best describes the arrangement of electrons in an atom of fluorine is:
**B. There are 2 electrons in the first energy level and 7 in the second.**
Fluorine has an atomic number of 9, meaning it has 9 electrons. The electron configuration for fluorine is 1s² 2s² 2p⁵, indicating that there are 2 electrons in the first energy level (1s) and 7 electrons in the second energy level (2s and 2p).
**B. There are 2 electrons in the first energy level and 7 in the second.**
Fluorine has an atomic number of 9, meaning it has 9 electrons. The electron configuration for fluorine is 1s² 2s² 2p⁵, indicating that there are 2 electrons in the first energy level (1s) and 7 electrons in the second energy level (2s and 2p).
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