Atomic structure Flashcards
1
Q
Atom
A
A particle that cannot be broken down into smaller particles
2
Q
Molecule
A
Made up of atoms (the same or different) that are chemically bonded
3
Q
Proton
A
+1, mass 1, found in the nucleus
4
Q
Neutron
A
0, mass 1, found in nucleus
5
Q
Electron
A
-1, mass 1/1836 and found in the shells
6
Q
Atomic number
A
number of protons in an atom
7
Q
Mass number
A
Number of protons and neutrons in an atom
8
Q
Isotopes
A
Atoms of the same element (same number of protons) but with a diferent number of neutrons
9
Q
Relative atomic mass (Ar)
A
(abundance x mass 1) + (abundance x mass 2) /100
