How many unpaired electrons are in the orbital diagram for sulfur? multiple cholce _0 _1 _2 _3 _4

No. of unpaired electrons in S = 2

Explanation:

Atomic number of Sulfur = 16

Electronic configuration of S:

1s2, 2s2, 2p6 and 2s2 are totally filled. only 3p^4 is partially filled. p sub shell has three orbital. As per Hund's rule electrons in the orbital of sub shell fill in such a way that orbitals are first singly occupied and after that pairing occurs.

therefore, no. of unpaired electrons in S = 2

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.