Non-metals are dull and lack lustre property. Can you name two exception from this group.

Explanation

**Step-by-Step Solution:**

1. **Understanding Non-Metals**: Non-metals are elements that generally lack metallic properties. They are usually dull in appearance and do not have a shiny surface, which is referred to as "lack of luster."

2. **Identifying the Question**: The question asks for two exceptions to the general property of non-metals being dull and lacking luster.

3. **Finding Exceptions**: While most non-metals are dull, there are exceptions that exhibit some degree of shine or luster.

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