8 electrons if it is a neutral atom.
It is found that more than beta dicarbonyl compounds have more than 75 % concentration in Enol form and remaining in Keto form.
Reason: This excess of Enol form can be explained due to extra stability of this isomer. It is found that the enol form is being stabilized by the interamolecular interactions i.e. Hydrogen bonding between the hydroxyl group (acting as Hydrogen Bond Donor) and Carbonyl Oxygen (Hydrogen Bond Acceptor).
Noah's principle is a concept that comes from the Biblical story found in the old testament where God gave Noah instructions to build an ark to save him and his family .
The concept here is that God did not tell Noah when it was going to rain. The people of the day most probably mocked and derided Noah as a time waster or a fool. That is, until the flood came. The " fool" had been wiser all along.
An Application is this. Google gives everyone who does online business "suggestions" and "guidelines" but not everyone chooses to listen. Google rarely, if ever, tells us when they will put the guidelines into action.
Panda, a Google ranking system, took 6 years while Google was telling online users to follow certain guidelines. Many ignored, until Panda was put into action, and those who had not heeded suffered with only themselves to blame.
Moral: Heed and prepare even if the outcome tarries.