Name the alkali metal which can combine directly with `As,P,S` and halogens.

Explanation

To determine the alkali metal that can combine directly with arsenic (As), phosphorus (P), sulfur (S), and halogens, we can follow these steps:

### Step 1: Understand the Properties of Alkali Metals
Alkali metals are located in Group 1 of the periodic table and include lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr). They are known for being highly electropositive and readily losing their single valence electron to form positive ions.

**Hint:** Alkali metals are characterized by their tendency to lose one electron and form cations.

### Step 2: Identify the Non-Metals
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