Question

Carbohydrates,fats,proteins:these organic molecules all have this element in common.this element can form multiple bonds,and it bonds with other elements as well as with itself this element is

Answer 1

The answer is carbon.
Carbon is a nonmetal and it has 4 electrons in his outer shell which allows him to form covalent chemical bonds with 4 other atoms. Carbon is abundant in all organic compounds and it is part of complex macromolecules such as carbohydrates, lipids, proteins.