How many elements are more electropositive than `CI`.
`B, N, O, C, S, P, At, H, Li`

Explanation

To determine how many elements are more electropositive than chlorine (Cl) from the given list: B (Boron), N (Nitrogen), O (Oxygen), C (Carbon), S (Sulfur), P (Phosphorus), At (Astatine), H (Hydrogen), and Li (Lithium), we can follow these steps:

### Step 1: Understand Electropositivity
Electropositivity is the tendency of an element to lose electrons and form positive ions. It generally increases down a group and decreases across a period from left to right in the periodic table.

### Step 2: Identify the Position of Chlorine
Chlorine (Cl) is located in Group 17 (the halogens) and Period 3 of the periodic table. It is relatively electronegative, meaning it is not very electropositive.

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