Electrons in Atoms Flashcards
The chemical properties of atoms, ions, and molecules are related to the arrangement of ______ within them.
electrons
In ______ model, there are four ‘quantum’ numbers that tell us where an electron is ______ to be located.
- Schrodinger’s
- likely
Principal Quantum Number (n), 1-7 gives the ______ level.
energy
Subshell (l), s-p-d-f, gives the ______ of the region of space.
shape
Orbital (m), gives us the ______ in space of the region.
orientation
Electron’s can spin what ways?
- Clockwise
- Counterclockwise
No 2 electrons have the ______ 4 quantum numbers.
same
Principal Quantum Number Designates the ______ level.
energy
Principal Quantum Number Tells how far away from the ______ an electron is likely to be.
nucleus
Principal Quantum Number Assigned values in order of ______ energy.
increasing
Principal Quantum Number Corresponds to the ______ on the periodic table.
period
Principal Quantum Number Lower value of n means the electron is closer to nucleus and has ______ energy.
less
Within each principal energy level there are a certain number of ______.
sublevels
Energy level 1 has 1 subshell; level 2 has ______; level 3 has ______, etc.
[2, 3]
These sublevels are called ______.
s, p, d, f
Each sublevel has a unique ______.
shape
These shapes describe the ______ of space where an e⁻ is likely to be located.
region
Each sublevel consists of a certain number of ______.
orbitals
s sublevel: ______ orbital; p sublevel: ______ orbitals; d sublevel: ______ orbitals; f sublevel: ______ orbitals.
[1, 3, 5, 7]
Each orbital can only hold ______ electrons.
2
Orbitals within each sublevel have similar shapes, but different ______ in space.
orientations
s orbitals have a ______ shape.
spherical
Hold a maximum of ______ electrons. First found in the ______ energy level.
- 2
- 1st
p orbitals have a pear or ______ shape.
dumbbell
3 different orientations: ______, ______, & ______.
[‘px’, ‘py’, ‘pz’]
Each orientation holds a ______ of 2 electrons.
maximum
The p sublevel as a whole holds a maximum of ______ electrons.
6
First found in the ______ energy level.
2nd
d-orbitals have ______ different orientations
5
Each holds ______ electrons.
2
The d sublevel as a whole holds a total of ______ electrons.
10
First found in the ______ energy level.
3rd
f-orbitals do not appear until the ______ shell (energy level) and higher.
4th
Max # of e⁻’s that can occupy a principal energy level is given by the formula ______.
2n^2
How many electrons are allowed in energy level 3?
18
3p has ______
3
2s has ______
1
4f has ______
7
4p has ______
3
3d has ______
5
In an atom, electrons are positioned around the nucleus in the most ______ arrangement possible.
stable
This is the arrangement that has the ______ energy.
lowest
Electrons will occupy orbitals having the ______ energy first, and then in order of increasing energy.
lowest
The ______ state of an atom is when every e⁻ is at its lowest energy.
ground
An orbital can be empty, have 1 e⁻, or AT MOST have ______ e⁻’s.
2
Electrons occupying the same orbital must have ______ spins—one clockwise, one counterclockwise.
opposite
When e⁻’s occupy orbitals of ______ energy, 1 e⁻ enters each orbital until all the orbitals contain 1 e⁻ with parallel spins.
equal