Q
QuestionChemistry

Why does nitrogen have 5 valence electrons?
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Answer

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Step 1:
I'll solve this problem step by step, explaining the electronic configuration of nitrogen.

Step 2:
: Understand the Atomic Structure of Nitrogen

Nitrogen is the 7th element in the periodic table, with an atomic number of 7. This means it has 7 protons in its nucleus and 7 electrons in its neutral state.

Step 3:
: Electron Configuration

The electron configuration of nitrogen is $$1s^{2} 2s^{2} 2p^{3}

Step 4:
: Valence Electron Determination

- Counting these electrons: $$2 + 3 = 5$$ valence electrons
Valence electrons are the electrons in the outermost shell available for chemical bonding. For nitrogen: - The 2nd shell (n = 2) is the valence shell

Step 5:
: Electronic Distribution

- $$2s$$ orbital contains 2 electrons
- 2p orbital contains 3 electrons - Total valence electrons = 5

Final Answer

Nitrogen has 5 valence electrons because its outer shell (n = 2) contains two 2s electrons and three 2p electrons, totaling 5 electrons available for chemical bonding.