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اختبار العناصر الكيميائية ةرموزها
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Q1
Score: 1
كالسيوم
كربون
بوتاسيوم
كربتون
Q2
Score: 1
صح
خطأ
Q3
Score: 1
صح
خطأ
Q4
Score: 1
1s2 1p6 2s2 2p1
1s2 2s2 2p6 2d1
1s2 2s2 2p6 3s1
1s2 2s2 2p7
Q5
Score: 1
N
Na
Ne
Ni
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