I’m not sure if this will help, but protons make different elements. That’s how we can tell the difference between elements!
Concept:
When an atom has incomplete number of electron in its outermost orbit then it has great tendency to react with another atom which satisfies their octate either by sharing or by transferring their electrons. The involved electrons are called valence electrons.
In case of electrovalent compound, the valance electron complete their octate by transferring their valence electrons while in the covalent compound, they complete their octate by the sharing of their valence electrons.
Hence, the valence electron of the atom is involved in chemical bonding with other atoms.
2KF(s) -----> 2K(s)+F2(g)
Answer:
Straight line shows that the outside atom is in the same plane as the central atom. Dashed lines shows that the outside atom is farther from us than the central atom. (Going into the page). Wedged line shows that the outside atom is closer to us than the central atom. (Coming out of the page)
Explanation:
When showing the 3D structure of molecules, we use dashes, wedges, and straight lines. Below are the functions of each line.
- Straight lines: Straight lines are used to show atoms and bonds that are in the same plane as the central atom.
- Dashed lines: Dashed lines are used to show atoms and bonds that go into the page, behind the plane, away from you. That is this line shows that the outside atom is farther from us than the central atom.
- Wedged lines: Wedged lines show bonds and atoms that come out of the page, in front of the plane, toward you. It shows that the outside atom is closer to us than the central atom.