If Z = 3, what would be the valency of the element? Also, name the element

Explanation

To solve the question, we need to determine the valency of the element with atomic number Z = 3 and identify the element itself.

### Step-by-Step Solution:

1. **Identify the Element**:
- The atomic number (Z) is given as 3. The atomic number indicates the number of protons in the nucleus of an atom, which also equals the number of electrons in a neutral atom.
- The element with atomic number 3 is Lithium (Li).

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