Answer:
Element
Explanation:
The symbol for gold is Au which only has one capital letter. This means that there is only one thing that makes up gold which would make it an element.
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(K+ + MnO4- )+(K+ +Cl- )
This would be a one to one ratio as the charges of each component are equal
D-number of electrons in the outer energy level.
The answer is 4.
Gases have low densities, because of the increased space between hight-energy particles.
