Problem: How many inner/core and outer/valence electrons are in Fe?28 inner/core and 2 outer and 2 valence18 inner/core and 8 outer and 8 valence18 inner/core and 2 outer and 8 valence18 inner/core and 8 outer and 2 valence

FREE Expert Solution

For Fe:

• Atomic number = 26
# of electrons = 26 e-
• Electron Configuration:    1s22s22p63s23p64s23d6

Valence electrons

• electrons in the outer or highest energy level orbitals

# of valence electrons:

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Problem Details

How many inner/core and outer/valence electrons are in Fe?

28 inner/core and 2 outer and 2 valence

18 inner/core and 8 outer and 8 valence

18 inner/core and 2 outer and 8 valence

18 inner/core and 8 outer and 2 valence

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What scientific concept do you need to know in order to solve this problem?

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