It has a full outer shell of electrons.
Technetium is a radioactive chemical element.
The name of the element comes from a Greek word meaning "inactive".
Nobel gases
Gold is a solid, inactive metal. I am a Chemistry Student, but that is my only qualification.
A filled highest occupied principal energy level
Is nickel active or inactive
Fermium is a radioactive chemical element.
Technetium is a radioactive chemical element.
Neon (Ne) is a chemical element, natural, gas, practically inactive.
Helium has completely filled valence orbitals (and thus has stable electronic configuration). Hence is is chemically inert or inactive. In fact, helium doesn't react with any other element.
The name of the element comes from a Greek word meaning "inactive".
The Greek word for lazy is τεμπέλης (tebelis), and there are no elements with a similar name. The element Argon comes from the Greek word for "inactive." Perhaps that is the one you are looking for.
Francium is a very radioactive and very chemically reactive chemical element.
Nobel gases
Gold is a solid, inactive metal. I am a Chemistry Student, but that is my only qualification.
A filled highest occupied principal energy level
The Active topology functionally allow you to make element inactive (and chnage them back active again).