I believe that would be a decomposer
It has a negative charge emits energy when it moves to a lower energy orbit from an excited state and it has the same mass as a proton
The group is might be labeled as VIIB or VIIA.
Answer:3.6 x 101 or 8.77 x 10-1
Answer:
Kr is a Noble Gas. Na is an alkali metal. F is halogen.
Group 17 is halogens. Inert is Noble Gases. Odourless and colourless is Noble Gases. Alkali metals do not occur freely in nature. Alkali metals are malleable
Explanation:
