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science chp. 3 sec.1
p.science-chp.3-sec1
Term | Definition |
---|---|
Matter | anything that has mass and takes up space anything we can see, touch, taste, or smell |
Atom | a very small particle that makes up most kinds of matter 1st named by Greek philosopher, Democritus |
Law of Conversion of Matter | matter is NOT created or destroyed, it only changes form |
Electrons | e- negatively charged particles |
Nucleus | positively charged, part of the atom |
Protons | p+ positively charged particles in the nucleus |
Neutrons | n* uncharged particles in the nucleus |
Electron Cloud | shows where electrons are likely to be |
Quarks | tiny particles making up protons and neutrons up & down/top & bottom/strange & charm |