Elementary particle (7)

'elementary particle' is the definition.
(neutron is a kind of elementary particle)
This is the entire clue.
(Other definitions for neutron that I've seen before include "Subatomic particle with no electric charge" , "Charged particle" , "Uncharged particle in a nucleus" , "Uncharged subatomic particle" , "one's not charged" .)
'elementary particle' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for atom that I've seen before include "Neutron and proton" , "An explosive particle as in bomb" , "Minute particle" , "Smallest particle in an element able to take part in a chemical reaction" , "Moat (anag.)" .)
'elementary particle' is the definition.
(pion is a kind of elementary particle)
This is the entire clue.
(Other definitions for pion that I've seen before include "It carries strong force" , "Type of meson" , "Subatomic particle" , "something tiny" .)
'elementary particle' is the definition.
(neutrino is a kind of elementary particle)
This is the entire clue.
(Other definitions for neutrino that I've seen before include "Spinner" , "This barely affects anything" , "Uncharged elementary particle" , "Subatomic particle, now said to travel faster than light" , "Tiny thing not charged" .)
'elementary particle' is the definition.
(electron is a kind of elementary particle)
This is the entire clue.
(Other definitions for electron that I've seen before include "One's charged" , "Elementary particle with negative charge" , "Subatomic particle -- enrol etc (anag)" , "Subatomic particle involved in conduction" , "Negatively charged particle" .)
'elementary particle' is the definition.
(proton is a kind of elementary particle)
This is all the clue.
(Other definitions for proton that I've seen before include "Positive nucleon" , "Positive thing" , "Particle in atom nucleus" , "Atomic constituent" , "Elementary particle found in all atomic nuclei" .)