The element is Magnesium
- It has total 12 electrons
it has electronic configuration

or

In valence cell it has 2 electrons and therefore its valency is 2
The chemical formula for sulfuric acid is H2SO4.
Detailed explanation:
This means that there are 2 atoms of hydrogen, 1 atom of sulfur, and 4 atoms of oxygen in a single molecule. Hope this helps!
Because it’s possible for the book to fall but it’s not yet falling if u understand
Divide the volume by the area. Using scientific makes things a bit cleaner.


Then

Now, 1 m = 10⁹ nm, so
