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Atoms

Across
99% of the atom is empty _____.
F
N
Mass of a Neutron
Ne
P
He
Responsible for Reactivity
Positive Charge
Equal to the number of Protons
Location of the Electrons
Mg
No Charge
B
Al
As
Na
Si
Hg
Cu
Down
Negative Charge
Sn
Ar
Responsible for holding the nucleus together
Mass of a Proton
Equal to the number of Protons AND Neutrons
Be
Pt
H
Pb
Location of the Protons and Neutrons
K
Ag
Cl
Zn
Au
Ca
Li
S
C
O