Structure of Matter Fundamental Particles Flashcards
1
Q
bohr model of atom
A
1913
solar system model
nucleus +
electron shell -
2
Q
fundamental particles of an atome
A
protons
neutrons
electrons
3
Q
composition of nucleus
A
protons and neutrons
4
Q
proton
A
in nucleus
positive charge +1
5
Q
neutron
A
in nucleus
neutral charge 0
6
Q
electrons
A
negative charge -1
7
Q
particles in order by large to small
A
protons
neutrons
electrons
8
Q
Shells
A
electrons K, L, M, N 1, 2, 3, 4 number of electrons in an atom determines number of shells of atom maximum number of electrons per shell 2 x n^2 n= shell number
9
Q
outermost shell
A
valence shell
