CC3 Flashcards
What is all matter made out of?
Atoms
What can an atom be further subdivided into?
Protons, neutrons and electrons
What are subparticles
The inside particles of an atom (Electron,Neutron,Proton)
Whats the mass of a proton and neutron
Both are 1
What’s the mass of an electron
1
—— of protons OR it’s negligible
1835
How big is a nucleus
A nucleus is very small compared to an atom
What’s atomic configuration?
The list of the amount of electrons
(2,8,8,2)
What’s an electron distribution
It’s when the atoms shells and electrons are drawn
What does the atom configuration tell you about the periodic table
The first number of the list is the period and the amount of numbers of shells is the group it’s in
(2,1). Lithium, period 2 group 2
What does abundance mean?
It means percentage
What’s is the formula to calculate percentage abundance of an isotope
100