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How many valence electrons does a neutral beryllium (Be) atom have?
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- 1. Intro to General Chemistry4h 5m
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- 24. Transition Metals and Coordination Compounds3h 19m
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- Crystal Field Theory Summary8m
- Magnetic Properties of Complex Ions9m
- Strong-Field vs Weak-Field Ligands6m
- Magnetic Properties of Complex Ions: Octahedral Complexes11m
10. Periodic Properties of the Elements
Valence Electrons of Elements
Scelta multipla
How many valence electrons does a nitrogen (N) atom have?
A
5
B
7
C
2
D
3
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Guida verificata passo dopo passo1
Identify the element in question, which is nitrogen (N).
Determine the atomic number of nitrogen, which is 7, meaning it has 7 electrons in total.
Recall that valence electrons are the electrons in the outermost shell (energy level) of an atom.
Write the electron configuration of nitrogen: \(1s^2\ 2s^2\ 2p^3\).
Count the electrons in the outermost shell (the second shell), which are the \$2s^2$ and \$2p^3$ electrons, totaling 5 valence electrons.
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