In a complete reaction, 23 grams of sodium reacts with 37 grams of chloride , what is the total mass of sodium chloride produced (made)?

60 grams NaCl

Explanation:

Because it is a complete reaction, the total mass of all the reactants is used. According to the law of conservation of mass, the same amount product should be produced as there was reactants. Add the mass together.

23+37= 60 g

the electronic configuration of an atom with eight electrons is 1s²2s²2p⁴. the orbital diagrams are shown in the figure.

as per the hunds rule:

1. electrons tend to avoid being in the same orbital as per as practicable.

2. electrons in different orbitals of the same energy will have their spin parallel.

this can be illustrated from the multiplicity of the orbitals of the atom. as there are four electrons in the p orbital and p orbital has 3 sub-shells. the electrons can be fed in different ways as shown in the figure but the correct orbital diagram will be as per the hunds rule.