Only covalent compounds are made by sharing electrons.
I suppose that you think to the solid state of matter.
Fossil fuels are made up of compounds called hydrocarbons. Fossil fuels are fuels that come from natural resources, such as dead organisms.
Almost all living things around is is made of carbon and its compounds (organic compounds) including plant, animals and living organisms. So, to simply put forward, without carbon compounds life would be impossible around us.
Some molecular compounds, such as methyl mercury, contain both metals and nonmetals. Most molecular compounds contain only nonmetals, and all molecular compounds contain at least one nonmetal element.
All matter is made of atoms. Each atom is made of particles such as electrons, nutrons and protons. The particles arrange themselves according to electrical properties.
This is the situation of covalent compounds.
Covalent bond. This is because electrons are shared between similar atoms. They are all electronegative.
Not all the anti aromatic compounds have the unpaired electrons, for example cycloocta tetraene
All compounds are made of two or more atoms.
All chemical compounds are formed from chemical elements.
Organic compounds are the basis for all life forms because they are all made of mostly carbon-based compounds and not synthetic materials. Carbon is able to bond with elements easily due to having four valence electrons.
mostly all carbon compounds have covalent bonding since carbon can't donate it's valence shell electrons it can share those electrons
All chemical bonds are formed by sharing electrons.
All compounds are made of two or more elements.
Ionic compounds: NaCl, KOH, CuSO4, etc. Any compound containing a metal and a non-metal. In ionic compounds, metals have positive ions (they lose electrons to the non metal) and non-metals have negative ions (as they gain electrons from the metal) Covalent compounds: CH4, BF3, NH3, all hydrocarbons/ all compounds containing only non-metals.
Matter include and others entities than elements and compounds.
No. Substances are made of atoms. Some atoms combine with other atoms to form compounds.