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Questions and Answers
ما هو تكافؤ elemento الهيدروجين؟
ما هو تكافؤ elemento الهيدروجين؟
- 3
- 2
- 4
- 1 (correct)
ما هو元素 المعدن الذي له تكافؤ 3؟
ما هو元素 المعدن الذي له تكافؤ 3؟
- النحاس
- الحديد
- المركوري
- الالمنيوم (correct)
ما هو عنصر غير معدني ي sahiptir tekafuo 2؟
ما هو عنصر غير معدني ي sahiptir tekafuo 2؟
- البوتاسيوم
- الأكسجين (correct)
- الكور
- الهيدروجين
أي من العناصر المعدنية لها tekafuo 2, 3؟
أي من العناصر المعدنية لها tekafuo 2, 3؟
أي من العناصر لاتكافؤه 1؟
أي من العناصر لاتكافؤه 1؟
Flashcards
Hydrogen's Valency
Hydrogen's Valency
The valency of hydrogen is 1, meaning it forms one bond.
Aluminum's Valency
Aluminum's Valency
Aluminum has a valency of 3, allowing it to form three bonds.
Oxygen's Valency
Oxygen's Valency
Oxygen typically has a valency of 2, forming two bonds.
Iron's Valency
Iron's Valency
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Chlorine's Valency
Chlorine's Valency
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Study Notes
Chemical Symbols and Valency of Elements
Here are the chemical symbols and valency of the given elements:
Alkali Metals
- Hydrogen (H) - Valency: 1
- Sodium (Na) - Valency: 1
- Potassium (K) - Valency: 1
Non-Metals
- Chlorine (Cl) - Valency: 1, 3, 5, 7
- Oxygen (O) - Valency: 2
Metals
- Aluminum (Al) - Valency: 3
- Magnesium (Mg) - Valency: 2
- Calcium (Ca) - Valency: 2
- Copper (Cu) - Valency: 1, 2
- Mercury (Hg) - Valency: 1, 2
- Iron (Fe) - Valency: 2, 3
Note: The valency of an element is the number of electrons an atom of that element can gain, lose, or share to form a bond with another atom.
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