وفّر 50٪ من خلال الاشتراك السنوي في مجرة واحصل على تصفح لا محدود لأفضل محتوى عربي على الإنترنت.
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هو عنصر كيميائي من الغازات الخاملة (غازات نبيلة) في الجدول الدوري، يستخدم في الإشارات الكهربائية ومصابيح الفلورسنت، وهو عديم اللون والرائحة والطعم وأخف من الهواء، ويحتجز بكميات قليلة داخل صخور قشرة الأرض.
تم اكتشاف النيون في عام 1898 من قبل الباحثين ويليام رامزي وموريس ترافرز في جامعة كوليدج لندن، حيث أطلق رامزي على العنصر المكتشف اسم "نيون" وهو كلمة يونانية تعني "جديد".
يتميز النيون بالمواصفات التالية:
يُستخدم النيون ذو اللون البرتقالي المحمر في صنع اللافتات الإعلانية، ويدخل في صناعة موانع الصواعق ومؤشرات الجهد العالي وأنابيب التلفزيون وأنابيب العدادات.
توجد آثار قليلة جداً من النيون في الغلاف الجوي للأرض بتركيز 18 جزءاً في المليون، وكذلك في قشرة الأرض، ويمكن إنتاجه تجارياً من الهواء السائل من خلال عملية تسمى التقطير التجزيئي، ويعتبر النيون العنصر الأكثر شيوعاً في النجوم وهو خامس أكثر العناصر وفرة في الكون.
تنتج أوكرانيا نحو 25% من النيون في العالم، وهو منتج ثانوي لتصنيع الصلب، حيث يقوم مصنعو أشباه الموصلات بتخزين النيون لمدة شهرين أو ثلاثة.
نعم، لكن يمتلك النيون أصغر نطاق درجة حرارة (2.6 درجة مئوية أو 4.7 درجة فهرنهايت) يكون بالحالة السائلة به.
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