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Date: 29-12-2016
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Date: 13-4-2019
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Date: 26-12-2016
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Metalloids
The elements that border the stair-stepped line in the periodic table are classified as metalloids, and they’re in Figure below.
The metalloids, or semimetals, have properties that are somewhat of a cross between metals and nonmetals. They tend to be economically important because of their unique conductivity properties (they only partially conduct electricity), which make them valuable in the semiconductor and computer chip industry. (The term Silicon Valley doesn’t refer to a valley covered in sand; silicon, one of the metalloids, is used in making computer chips.)
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دخلت غرفة فنسيت ماذا تريد من داخلها.. خبير يفسر الحالة
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ثورة طبية.. ابتكار أصغر جهاز لتنظيم ضربات القلب في العالم
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سماحة السيد الصافي يؤكد ضرورة تعريف المجتمعات بأهمية مبادئ أهل البيت (عليهم السلام) في إيجاد حلول للمشاكل الاجتماعية
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