The correct noble gas configuration for Lithium (Li) is B. [He]2s1.

Here's why:

1. Lithium (Li) has an atomic number of 3, which means it has 3 electrons in its neutral state.

2. The first two electrons will fill the 1s orbital, which is represented by the helium (He) noble gas configuration. This is why we use [He] as a shorthand notation.

3. The third electron will go into the next available orbital, which is the 2s orbital.

So, the electron configuration of Lithium is written as [He]2s1, which corresponds to option B.

Question

The correct noble gas configuration for Lithium (Li) is B. [He]2s1.

Here's why:

1. Lithium (Li) has an atomic number of 3, which means it has 3 electrons in its neutral state.

2. The first two electrons will fill the 1s orbital, which is represented by the helium (He) noble gas configuration. This is why we use [He] as a shorthand notation.

3. The third electron will go into the next available orbital, which is the 2s orbital.

So, the electron configuration of Lithium is written as [He]2s1, which corresponds to option B.

Knowee AI · Accepted Answer

The correct noble gas configuration for Lithium (Li) is B. [He]2s1.

Here's why:

1. Lithium (Li) has an atomic number of 3, which means it has 3 electrons in its neutral state.

2. The first two electrons will fill the 1s orbital, which is represented by the helium (He) noble gas configuration. This is why we use [He] as a shorthand notation.

3. The third electron will go into the next available orbital, which is the 2s orbital.

So, the electron configuration of Lithium is written as [He]2s1, which corresponds to option B.

Which of the following notations is the correct noble gas configuration for Li?A.1s22s1B.[He]2s1C.1s22sD.[He]1s22s1

Question

Which of the following notations is the correct noble gas configuration for Li?

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