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# The number of neutrons in the nucleus of an atom
# properties of the atom and the nucleus
# Physics of the atom and nucleus
# The structure of the atomic nucleus
# kernel and atom
# atomic nucleus mass
# Corn kernel components
# The radius of the corn kernel
# Who discovered the atom?
# Who is the scientist of the atom?
# What do we find inside the atom?
# Who discovered the cell nucleus?
# What are the components of the cell nucleus?
# What is the function of the nucleus?
# atom neutron
# Atom and atomic radiation
# Atom and atomic bombs
# From the atom to the star
# From the atom to the galaxy
# social atom
