not very
Carbon is considered highly reactive. This is due to the fact that it can react with many elements on Earth.
The metal with the symbol K in a diamond is potassium. It is a soft, silvery-white alkali metal with the atomic number 19 on the periodic table. Potassium is highly reactive and is essential for many biological processes.
It is as reactive as indium. Just kidding, it is reactive. Hoe reactive, more reactive than silver, but not as reactive as tin.
reactive
Cerium is reactive but not highly reactive.
helium is non reactive.
Hydrogen IS reactive
The most reactive nonmetals are the Halogens, found in group 17. These elements tend to have 7 electrons in their outermost energy level (valence electrons). Since they only need one more electron to stabilize, they react easily to form a negative ion.
reactive.
it is reactive
Carbon is not considered very reactive compared to elements like sodium or chlorine. It can form bonds with other elements, but it generally requires more energy to react than highly reactive elements.
fluorine is the most reactive