Iron, Ruthenium, Osmium, and Hassium.
They're transition metals
The answer is Strontium(Sr). The reactive increase from right to left. And this element has two valence electrons. So Rb is not correct. Then the very reactive metal is Sr.
Tell the teacher, do NOT clean it up yourself.
I believe that it is B chemicals containing carbon
Answer:
because of the material, they are made of
Explanation:
like a paperclip and a car door maybe they both are metal or steel whatever they both can conduct energy. because of what they are made of.
i hope this helps and sorry i am rushing, i also just woke up