What is the goal number of electrons to be achieved in the outermost energy shell for a chemical bond to occur?

The answer is; 8

This is also referred to as the octet rule. Inert elements tend to have an 8 election configuration in their outermost shell while other elements react to achieve this electron configuration. This is determined by their  position in the periodic table. However, there are exceptions; Helium has a 2 stable electron configuration in the outermost shell while transition metals have stable 18-electron configuration.;

answer: although many types of viruses can cause a common cold, rhinoviruses are the most common culprit. a cold virus enters your body through your mouth, eyes or nose. the virus can spread through droplets in the air when someone who is sick coughs, sneezes or talks. theres your answer

explanation: