Number of men required to stand on top of each other to reach moon from earth are :
The answer is B. Boron
The number of electrons and protons are always the same in an atom.
There are 5 electrons which means there are also 5 protons.
The number of Protons determines the atomic number of an element.
Since the element has 5 protons its atomic number is 5, the same atomic number as Boron
Answer: The geologic time scale is the “calendar” for events in Earth history. It subdivides all time into named units of abstract time called—in descending order of duration—eons, eras, periods, epochs, and ages.
Explanation: I learned about it the other day
