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Date: 11-7-2018
1022
Date: 20-11-2020
1190
Date: 6-9-2020
1059
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The elements in the periodic table are divided into specific groupings; the metals, the non-metals, the semi-metals, and so on. These groupings are largely based on physical properties and on the tendency of the various elements to bond with other elements by forming either an ionic or a covalent bond. As a general rule of thumb, compounds that involve a metal binding with either a non-metal or a semi-metal will display ionic bonding. Thus, the compound formed from sodium and chlorine will be ionic (a metal and a non-metal). The basic unit of ionic compounds are called formula units.
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قسم الحزام الأخضر الجنوبي ينظّم حفلاً بذكرى ولادة الإمام علي (عليه السلام)
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