What group of elements with matals to from salts?

The group of elements that react with metals to form salts are called non-metals. Non-metals are elements that generally have high electronegativity, which means they have a strong tendency to attract electrons. When non-metals react with metals, the metal atoms lose electrons to the non-metal atoms, resulting in the formation of positively charged metal ions and negatively charged non-metal ions. These ions then combine to form ionic compounds, commonly known as salts.

Examples of non-metals that form salts with metals include:

1. Chlorine (Cl): When chlorine reacts with sodium (Na), it forms sodium chloride (NaCl), commonly known as table salt.

2. Oxygen (O): Oxygen reacts with many metals to form metal oxides. For instance, iron (Fe) reacts with oxygen to form iron oxide (Fe2O3), which is commonly known as rust.

3. Sulfur (S): Sulfur reacts with metals to form sulfides. An example is copper (Cu) reacting with sulfur to form copper sulfide (CuS), which has a characteristic black color.

4. Fluorine (F): Fluorine is highly electronegative and reacts with metals to form fluorides. For instance, calcium (Ca) reacts with fluorine to form calcium fluoride (CaF2), which is used as a flux in metallurgy.

5. Nitrogen (N): Nitrogen combines with metals to form nitrides. An example is aluminum (Al) reacting with nitrogen to form aluminum nitride (AlN), which is a hard and refractory ceramic material.

These are just a few examples of non-metals that form salts with metals. The reactivity of non-metals and the properties of the resulting salts depend on the specific elements involved and their chemical properties.