Examen 23/10/2017 Flashcards
1
Q
From where can a name for an element originate?
A
Regions, Languages or people’s names
2
Q
How is the Atomic number represented and what does it mean?
A
(Z) #of electrons/protons
3
Q
How is the Mass number represented and what does it mean?
A
(A) #of Protons & Neutrons
4
Q
What is an isotope
A
Atoms of the same element with different number of neutrons
5
Q
Each new electron added to an atom will enter the available orbital with less energy is the:
A
Aufbau principle
6
Q
One electron will enter each orbita with a paralell pin until all orbitals have one electron and only the will a second electron be added to those orbitals.
A
Hund’s rule
7
Q
Electrons ins the same atom cannot have the same 4 numbers, they must have opposite spins.
A
Paullis’s rule
