Answer:
reactive nonmetals since they have a full valence shell (that's why they're stable).
It is B, From the bottom of the pyramid to the top
Answer:
Explanation:
The theory or working principle of Atomic Emission Spectroscopy involves the examination of the wavelengths of photons discharged by atoms and molecules as they transit from a high energy state to a low energy state. A characteristic set of wavelengths is emitted by each element or substance which depends on its electronic structure.
