BioMedical Admissions Test (BMAT) 2025 – 400 Free Practice Questions to Pass the Exam

Group 8 elements, also known as the noble gases, include helium, neon, argon, krypton, xenon, and radon. These elements are characterized by their very low chemical reactivity due to having a complete outer electron shell, which makes them stable and less likely to form compounds.

The property of being non-flammable is accurate for these gases, as they do not support combustion. Unlike many other elements that can easily react with oxygen to produce heat and light, noble gases remain inert under most conditions. This makes them safe for use in a variety of applications where non-reactivity is essential, such as in lighting and in certain types of gas-filled electrical devices.

While options such as highly reactive and low melting points do not apply to Group 8 elements—since they are known for their lack of reactivity and relatively high melting points—conductivity is also not a characteristic of noble gases due to their nonmetallic nature and lack of free electrons for conduction. Therefore, the property that best describes Group 8 elements is their non-flammability.