Atom: A Closer Look Lesson 3 Flashcards
proposed a new model for the structure of the atom in 1913
Niels Bohr (1885 - 1962)
The chemical properties of an atom are based on this.
The electrons in the outermost shell of an atom
According to Niels Bohr, the electrons in an atom exist only in these.
Energy levels (certain distances from an atom)
The formula for finding out how many electrons an energy level can hold.
2n^2
The region in space where the electron is most likely to be found.
Atomic orbital
The four different shapes of atomic orbitals:
- Sharp (s)
- Principal (p)
- Diffuse (d)
- Fundamental (f)
This atomic orbital is spherical in shape.
Spark (s)
This atomic orbital is shaped like a dumb-bell.
Principal (p))
This atomic orbital is four lobe-shaped
Diffuse (d)
This atomic orbital is six-lobed shaped:
Fundamental (f)
The max number of sharp (s) orbitals found in an energy level.
1
The max number of principal (p) orbitals found in an energy level.
3
The maximum number of diffuse (d) orbitals found in an energy level.
5
The maximum number of fundamental (f) orbitals found in an energy level.
7
This principle states that only two electrons can share the same orbital, with each electron spinning in the direction opposite to each other.
Pauli’s exclusion principle