Correct the statements
Metals adsorb hydrogen.

Explanation

### Step-by-Step Text Solution

1. **Identify the Incorrect Statement**: The original statement is "Metals adsorb hydrogen." This statement is not entirely accurate as it lacks specificity regarding which metals and the conditions under which they adsorb hydrogen.

2. **Specify the Correct Metals**: Certain metals, specifically palladium, nickel, and platinum, are known for their ability to adsorb hydrogen gas.

3. **Clarify the Process of Adsorption**: Adsorption refers to the process where atoms, ions, or molecules from a gas, liquid, or dissolved solid adhere to a surface. In this case, hydrogen molecules adhere to the surface of these specific metals.

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