Atomic Structure Flashcards
1
Q
What are the 3 sub-atomic particles called?
A
Electron proton neutron
2
Q
What are forund in the nucleus?
A
Protons and neutrons
3
Q
Electron shells can hold a limited number of electrons -
Shell 1?
outer shells?
A
shell 1 = 2 electrons
outer shells = 8
4
Q
What is the atomic number?
A
number of proteins in nucleus of an atom
5
Q
What is the mass number?
A
total number of protons and neutrons in nucleus of an atom
6
Q
Complete the equation:
Number of neutrons =
A
Number of neutrons = mass - atomic number
7
Q
What is the relative charge of a proton?
A
+1
8
Q
What is the relative charge of a neutron?
A
0
9
Q
What is the relative charge of an electron?
A
-1
