What is the valency of gold?

Explanation

### Step-by-Step Solution

1. **Understanding Valency**:
- Valency is defined as the measure of an element's combining capacity with other atoms when it forms a chemical compound. It indicates how many electrons an atom can lose, gain, or share during a chemical reaction.

2. **Identifying Gold's Symbol**:
- The chemical symbol for gold is Au. This is important for identifying the element in the periodic table and understanding its properties.

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