Hey there!
Sulphur is the element which has 6 electrons in the outermost shell.
WhereasCalcium,Neon have 2 and chlorine has 7.
Hope this explanation helps you :)
Have a good day :)
Answer: The answer would be minerals. Synthetics are made by men, and shouldn't be found in the earth Vitamins are organic Cement is a mixture of an organic compounds and rarely found in nature.