Noble gases have positive EGE.

Noble gases have positive EGE.

Step 1: Understand the statement The statement is saying that noble gases have positive EGE.

Step 2: Define noble gases Noble gases are a group of chemical elements that are characterized by their low reactivity and full outer electron shells. They include helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn).

Step 3: Define EGE EGE stands for Electron Gain Enthalpy, which is a measure of the energy change that occurs when an atom gains an electron to form a negative ion. It indicates the tendency of an atom to accept an electron.

Step 4: Determine the sign of EGE for noble gases The statement claims that noble gases have positive EGE. This means that noble gases have a tendency to gain electrons and form negative ions.

Step 5: Understand the significance The fact that noble gases have positive EGE is significant because it explains their low reactivity. Since noble gases already have full outer electron shells, they are stable and do not readily gain or lose electrons. This makes them chemically inert and less likely to form compounds with other elements.