Question

Write all elements which have valency +1 (not -1).​

Answer 1

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Elements which have valency +1 are

• Hydrogen (H)
• Lithium (Li)
• Sodium (Na)
• Potassium (K)
• Rubidium (Rb)
• Caesium (Cs)
• Francium (Fr)

Answer 2

Explanation:

1. Copper _ Cu+¹

2. Silver _ Ag+¹

3. Mercury _ mg +¹

4. Sodium

5. potassium

6. Hydrogen

7. Flourine

8. Chlorine

9. Bromine

10. Iodine

Thank you ✌