Question

almost all of an atom’s mass is found in its nucleus, located in the center of the atom. an atom’s nucleus can contain two types of particles: protons and neutrons.
the nucleus of every atom contains one or more protons. each proton has a positive electrical charge.
in some atoms, the nucleus also contains neutrons. a neutron has no electrical charge.
match each property with the part of an atom it describes.
neutron proton nucleus
can contain two types of particles
has a positive charge in all atoms
has no electrical charge

Explanation:

• The nucleus, located at the atom's center, is defined as containing protons and neutrons (two particle types).
• All atoms have at least one proton in their nucleus to have a basic atomic structure.
• Neutrons are explicitly stated to have no electrical charge.

Answer:

• can contain two types of particles: nucleus
• is a particle present in all atoms: proton
• has no electrical charge: neutron