Nitrogen (N) has an atomic number of 7 and an atomic mass of 14. Which of the following correctly shows the electron arrangement for nitrogen?

2, 7
2, 5
2, 2, 3
2, 8, 4

The atomic mass is 14, and the atomic number is 7. Knowing this, the atom must have 7 electrons. A and D are not correct because they both include a number that is not 7 if you add. B or C seem to be the best answers, I think it's B because C has the same number repeated twice in it. I might be wrong but I know that the answer has to be either B or C.

A thanks or a good rating would be appreciated :)

ANKITMGO ANKITMGO · Answer 2

2,2,3 shows the correct electron arrangement for nitrogen.

What is an electron arrangement?

An electron arrangement is the way in which electrons are arranged in an atom .

What is nitrogen?

Nitrogen is a non-metallic element of Group 15 [Va] of the periodic table.

Nitrogen is a colourless and odourless gas that is the most plentiful element in Earth's atmosphere and is a constituent of all living matter.

In the electronic configuration of nitrogen the first two electrons will go to the 1s orbital. Since 1s orbital can only hold two electrons the next 2 electrons of nitrogen goes to the 2s orbital. The remaining three electrons will go in the 2p orbital.

Therefore, the electron arrangement of nitrogen will be 1s² 2s² 2p³.

To learn more electron configuration and nitrogen here

https://brainly.com/question/20500651

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