Is sulfur a metal or non-metal?, Non-metal, Metal, Is Zinc a metal or non-metal, Non-metal, metal, How many protons are there in sodium?, 11, 12, How many protons are there in nitrogen?, 7, 14, How many electrons are there in boron?, 5, 11, How many electrons are there in fluorine?, 9, 10, How many neutrons are there in beryllium?, 4, 5, How many neutrons are there in phosphorus? , 15, 16, Which group does Iodine belong to?, Group 16, Group 17, Which group does Calcium belong to?, Group 2, Group 14.

Atomic structure

بواسطة
طباعة
تضمين

لوحة الصدارة

النمط البصري

الخيارات

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