Show:
Parts Of an Atom
Atomic Numbers
Atomic Mass
Atomic Name
Definitions
100
The center of the atom that contains the protons and neutrons is called what?
The nucleous
100
Atomic number 14
Silicon
100
What unit of measurement are atomic masses measured in?
AMU
100
He
Helium
100

Elements of the same atom with a different number of neutrons

isotopes
200
PArticles inside the nucleus with a positive charge. 
protons
200
Atomic number 97
Berkelium
200
How big is the nucleus of an atom compared to the size of a football stadium?
About the size of a marble
200
Mg
Magnesium
200
Another way to identify protons and nutrons
atomic mass
300
Particles within the nucleus with no charge 
neutrons
300
Atomic number 9
Fluorine 
300
How much atomic mass does a proton have?
1
300
Si
Silicon
300
abbreviated version of the elements name
Atomic symbol
400
Particles with a negative charge, found outside the nucleus
electrons
400
Atomic number 54
Xenon
400
A neutron has the atomic mass of what?
1, The same is a proton.
400
Ne
Neon
400
Elements with the same number of valence electrons
a group
500
Most of the mass in an atom is located where?
The nucleus
500
Atomic number 113
Nihonium
500
What is atomic mass?
The mass of an atom.
500
Xe
Xenon
500
Elements with the same number of energy levels
a period