List a few synthetic indicators

The two synthetic indicators are phenolphthalein and methyl orange.

Explanation:

There are many synthetic indicators: Methyl Orange, Phenolphthalein, Bromothymol Blue, Creson Red, Alizarine Yellow R, Gentian Violet (or Methyl Violet), Leucomalachite Green, Bromocresol Purple, Naphtholphthalein, Thymolphthalein, etc

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.

they are made of gases.

they have a spherical shape.

they make energy through fusion.