What is a compound composed of two elements that share valence electrons?

What is it called when elements share 2 valence electrons?

Covalent bonding occurs when pairs of electrons are shared by atoms. … By sharing their outer most (valence) electrons, atoms can fill up their outer electron shell and gain stability.

What elements form a compound by sharing electrons?

In a covalent bond, the atoms bond by sharing electrons. Covalent bonds usually occur between nonmetals. For example, in water (H2O) each hydrogen (H) and oxygen (O) share a pair of electrons to make a molecule of two hydrogen atoms single bonded to a single oxygen atom.

What are the 2 compounds?

There are two basic types of compounds that differ in the nature of the bonds that hold their atoms or ions together. They are covalent and ionic compounds.

What are two compounds?

Examples of Compounds:

  • Water – Formula: H2O = Hydrogen2 + Oxygen. …
  • Hydrogen Peroxide – Formula: H2O2 = Hydrogen2 + Oxygen2
  • Salt – Formula: NaCl = Sodium + Chlorine. …
  • Baking Soda – Formula: NaHCO3 = Sodium + Hydrogen + Carbon + Oxygen3
  • Octane – Formula: C8H18 = Carbon8 + Hydrogen18
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