The least amount of energy required to activate atoms or molecules to a state in which they can undergo a chemical reaction.
It would be A. proton and electron
Answer:
The molecular formula lists the symbol of each element within the compound followed by a number (usually in subscript). The letter and number indicate how many of each type of element are in the compound. If there is only one atom of a particular element, then no number is written after the element.
The answer is Thermal Energy :)
Answer: Calcium
Explanation:
not 100% sure but i looked it up and got calcium. 99% sure.
