covaliant
metals
Most of the elements in the top right of the period table (but not "group 8" - the furthest column to the right) will readily form anions (negatively charged ions) that can then form ionic bonds. Examples are O, N, P and S
Magnesium chloride is an ionic compound, which means it forms when magnesium (a metal) transfers electrons to chlorine (a nonmetal), resulting in an attraction between the positively charged magnesium ions and the negatively charged chloride ions. This type of bonding creates a crystal lattice structure in the solid form of magnesium chloride.
Almost all elements are capable of some kind of chemical bond; they could be called reactive elements since they undergo chemical reactions. Those which do not undergo chemical reactions are said to be inert.
ionic bonding
The bonding in KI would be ionic, as potassium (K) is a metal and iodine (I) is a nonmetal. In ionic bonding, electrons are transferred from the metal to the nonmetal, resulting in the formation of ions with opposite charges that attract each other to form a stable compound.
Ionic bonding
covalent bonding
Tin(II) chloride (SnCl₂) is an ionic compound, where the tin metal forms a positive ion and the chlorine atoms form negative ions. This results in the attraction between the positive and negative ions, leading to an overall ionic bonding type.
A chemical unit involved in a process is typically referred to as a molecule. A molecule is the smallest unit of a chemical compound that retains the chemical properties of that compound. It is made up of two or more atoms bonded together.
Sodium dodecylbenzenesulfonate is an ionic compound with ionic bonding between the sodium cation and the dodecylbenzenesulfonate anion. Ionic bonding involves the transfer of electrons from one atom to another, resulting in the formation of positively and negatively charged ions that are held together by electrostatic forces.
covalent
compound
metals
Most of the elements in the top right of the period table (but not "group 8" - the furthest column to the right) will readily form anions (negatively charged ions) that can then form ionic bonds. Examples are O, N, P and S
Cobalt and nitrogen typically form coordinate covalent bonds. Nitrogen donates a lone pair of electrons to cobalt, allowing them to share those electrons and form a stable compound.
C1I1O2 is a covalent compound.