Answer to Question #221708 in General Chemistry for BraveHeart

Question

Calculate the electronic reconfiguration in the following element

HNO3 - N
KOH - O
CO2 - O
MgO - Mg


Use the calculation to determine
1) The period and group of each of the elements
2) state the valency of the calculated element

Answer 1

The electronic configuration of N is 1s²2s²p³

. The 1s orbital is completely filled and unavailable for bonding. That leaves the 2nd and 2p orbitals. The formation of 4 bonds (covalency) is explained by hybridation of the 2s and 2p orbital forming 4sp³Â orbitals.

2.