The first energy level can hold how many electrons?
What is 2
100
What do the dots in a Lewis electron-dot structure represent?
What is the number of valence electrons
200
What is the electron configuration for oxygen?
What is 1s^2 2s^2 2p^4
200
What is the most stable arrangement of electrons?
What is ground-state electron configuration
200
How many valence electrons does nitrogen have?
What is 5
200
The second energy level can hold how many electrons?
What is 8
200
In order to fill the 3d orbital you must first fill in the ______ orbital
What is 4s orbital
300
1s^2 2s^2 2p^5 is the electron configuration for what element?
What is flourine.
300
Which principle states that each electron occupies the lowest energy orbital available?
What is Aufbau principle
300
How many valence electrons does iron have?
What is 2
300
The third energy level can hold how many electrons?
What is 8
300
Out of these four energy levels, which one has the most energy: 1s 2d 3d 4s ?
What is 3d
400
1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 is the electron configuration for what element?
What is Calcium
400
Which principle states that a maximum of 2 electrons may occupy a single atomic orbital, but only if the electrons have opposite spins?
What is the Pauli exclusion principle
400
How many valence electrons does iodine have?
What is 7
400
The fourth energy level can hold how many electrons?
What is 18
400
how many electrons can the first energy level hold?
What is 2
500
What is the electron configuration for Mg^+2?
What is 1s^2 2s^2 2p^6.
500
Which principle states that single electrons with the same spin must occupy each equal-energy orbital before additional electrons with opposite spins occupythe same orbitals?
What is Hund's rule
500
How many valence electrons does xenon?
What is 8
500
What four letters represent the sublevels (subshells)?
What is s, p, d, f.
500
What is the maximum number of electrons that a 4f orbital can hold?