Question

Use the periodic table to answer the question.

The periodic table of elements shows element groups, periods, and element properties.

Which statement best describes the arrangement of electrons in an atom of fluorine (F)?

(1 point)
Responses

There are two electrons in the first energy level and five electrons in the second energy level.
There are two electrons in the first energy level and five electrons in the second energy level.

There are two electrons in the first energy level and seven electrons in the second energy level.
There are two electrons in the first energy level and seven electrons in the second energy level.

There are five electrons in the first energy level and two electrons in the second energy level.
There are five electrons in the first energy level and two electrons in the second energy level.

There are seven electrons in the first energy level and two electrons in the second energy level.
There are seven electrons in the first energy level and two electrons in the second energy level.
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Answer 1

To determine the arrangement of electrons in an atom of fluorine (F), we need to know its atomic number, which is 9. This means a fluorine atom has 9 electrons.

The distribution of these electrons across energy levels (shells) follows the rules of electron configuration:

1. The first energy level can hold a maximum of 2 electrons.
2. The second energy level can hold a maximum of 8 electrons.

For fluorine:
- The first energy level will contain 2 electrons.
- The remaining 7 electrons will go into the second energy level.

Therefore, the correct statement is:

**There are two electrons in the first energy level and seven electrons in the second energy level.**