Are Particles 'Physical Things' or 'Abstract Ideas'?

[Mudhammam]

Can you tell me what you mean specifically by "physical" and "abstract"?   I like to use terms knowing how they will be interpreted. 

Physical - concrete, substantial, 
   Examples: tables, chairs, earth, wind, fire, air
   It is a world in which we perceive a perpetual flux of different states of material compositions. Never observed truly directly but through the senses and then the organization of sense data in the brain. Becomes more or less substantial (though it still is to some degree) with each level of addition/division: cells, molecules, atoms, particles, and then... well... the line starts to blur between the physical and...

Abstract - theoretical, notional
   Examples: words, concepts, mental images, meaningful frameworks through which we distinguish things like "table," "chair," "earth," etc.
   It is a world in which conceive the notion of flux and its opposite, stasis. In fact, most concepts exist only as other ends of a contradiction or contrary: light, heaviness, black, white, good, evil, etc. (some have speculated that language creates many of the "paradoxes" our rational mind stares at blankly, demarcating relative knowledge from absolute ignorance... there the contradictions and contraries show up go again). Never observed truly directly but through the mind and then the organization of interlocking relationships (think mathematics) that reveal necessary, unchanging principles. Becomes more or less conceptual (though it still is and sometimes to an even fuller degree of abstraction) with each level of addition/division... to the non-logician or non-mathematician.

Both are real, but our experience of each, whether through the senses or through knowledge, can only confirm as much to the extent that each complements the other as much as possible, which we find most satisfactory when intuition and experiment seem to overlap.