Transition metals can have multiple oxidation states because of their electrons. The transition metals have several electrons with similar energies, so one or all of them can be removed, depending the circumstances. ... When they attach to other atoms, some of their electrons change energy levels.
No. Oxygen isn't even a metal.
Alkaline earth metals are the elements of the second column of the periodic table.
I think the answer is yellow. Sorry if I got it wrong
Answer:
C. Reacting
Explanation:
Halogens donot have one valence electron they have seven valnece electrons, they have one unpaired electron. Due to their high electron affinity they are considered most reactive non-metals in their respecitve period.
Answer:
Noble Gases
Explanation:
Noble gases are very unreactive because they already have a full valence shell and therefore, do not need to bond.