atomic structure Flashcards
1
Q
what is +
A
protons
2
Q
what is -
A
electrons
3
Q
what is +
-
A
neutrons
4
Q
what does the number at the top represent
A
atomic number
5
Q
what does the bottom number represent
A
mass number
6
Q
to find the mass you add what
A
protons + nuetrons
7
Q
to find the atomic number you minus what
A
protons - electrons
8
Q
what is the e.c
A
the number of protons around the center
