Atomic Structure Flashcards
Relative mass of a proton
1.000
Relative charge of a proton
+1
Relative mass of a neutron
1.000
Relative charge of a neutron
0
Relative mass of an electron
0.0005
Relative charge of an electron
-1
What does the atomic number tell you?
The number of protons
What does the mass number tell you?
The total Humber of protons and neutrons
What is the number of protons the same as and why?
The number of electrons as atoms are neutral
What is the top number?
Mass number
What is the bottom number
Atomic number
What is an isotope?
An atoms with the same number of protons and electrons but a different number of neutrons
How do you calculate the RAM
RAM = (abundance/100 x mass number) + (abundance/100 x mass number)
What does the period of an atom tell you?
Number of electron shells (row)
What does the group of an atom tell you?
The number of electrons on the outer shell (column)