Science Flashcards
What does the p stand for in penam
Protons-a positive charge found in nucleus
What does the e stand for in penam
electron- negative charhe found in shell orbit
What does the n stand for in penam
Nuetrons- No charge they add mass to the atom
What does the a stand for in penam
Atomic number- protons number
What does the m stand for in penam
mass number
P+e=m P=a A=P
no P+N-m# P=e A=p
Daltons
Solid Sphere
Thompson
Electron- plum pudding
Rutherford
Proton and nuclues
Also rutherford
Wanted to prove Thompson to be right
Used alpha particles like helium
Nuclues 2 protons 2 nutrons
Bohr
Nuclues and electron- shells.
chadwick
nuetrons, twice mass of protons
Ruther Ford taught dalton T or F
F Rutherford was taught by dalton
Electrons and protons have to be the same number of them
T
Democraitus
Cant split atoms and all material bodies are made of atoms`