For each element, count the number of core electrons, valence electrons, and unp

Question

For each element, count the number of core electrons, valence electrons, and unpaired electrons in the ground state.

Part A

carbon

Express your answers as an integers. Enter your answers in corresponding order separated by commas.

Part B

phosphorus

Part C

neon

For each element, count the number of core electrons, valence electrons, and unpaired electrons in the ground state.

Part A

carbon

Express your answers as an integers. Enter your answers in corresponding order separated by commas.

Part B

phosphorus

Part C

neon

Explanation / Answer

Part A carbon with atomic number 6
Ground state electronic configuration 1s22s22p2
Number of core electrons 2
Number of valence electrons 4
Number of unpaired electrons 2

Part B phosphorous with atomic number 15
Ground state electronic configuration 1s22s22p63s23p3
Number of core electrons 10
Number of valence electrons 5
Number of unpaired electrons 3

Part C neon with atomic number 10
Ground state electronic configuration 1s22s22p6
Number of core electrons 2
Number of valence electrons 8
Number of unpaired electrons 0

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