The concept of the Association of Atomic

Ikatan Primer

• Ionic
• Kovalen
• Metallic/logam

Ionic Bond (Ikatan Ion)
An ionic bond is created between two unlike atoms with different electronegativities, or Strong Coulomb interaction among negative atoms (have an extra electron each) and positive atoms (lost an electron).e.g. NaCl. When sodium donates its valence electron to chlorine, each becomes an ion; attraction occurs, and the ionic bond is formed

Covalent Bond (Ikatan Kovalen)
Electrons are shared between the molecules to saturate the valency, e.g. H2, Cl2

Metallic Bonds (Ikatan Logam)
The metallic bond forms when atoms give up their valence electrons, which then form an electron sea.  The positively charged atom cores are bonded by mutual attraction to the negatively charged electrons

Ikatan Sekunder :

There is no electron transfer (van der Waals forces) occurred due to the interaction between elements of the charged

Interactions are formed as a result of polarization of molecules or groups of atoms.  In water, electrons in the oxygen tend to concentrate away from the hydrogen.  The resulting charge difference permits the molecule to be weakly bonded to other water molecules