Contains protons, neutrons, and electrons
Contains a small, dense nucleus
Has positrons and orbitals
Is a hard, indivisible sphere
A neutral nucleus is surrounded by one or more negatively charged electrons.
A neutral nucleus is surrounded by one or more positively charged electrons.
A positively charged nucleus is surrounded by one or more negatively charged electrons.
A positively charged nucleus is surrounded by one or more positively charged electrons.
Br, Ga, Hg
Cr, Pb, Xe
O, S, Se
N, O, F
Mass number, only
Atomic number, only
Both mass number and atomic number
Neither mass number nor atomic number
I2(s) and I2(g)
O2(g) and O3(g)
H2(g) and Hg(g)
H2O(s) and H2O(l)
Equally shared by two atoms
Unequally shared by two atoms
Transferred from the nucleus of one atom to the nucleus of another atom
Transferred from the valence shell of one atom to the valence shell of another atom
Energy is absorbed.
Energy is released.
The molecule creates energy.
The molecule destroys energy.
Water vapor forms snowflakes.
Table salt (NaCl) is crushed into powder.
Glucose (C6H12O6) and oxygen produce CO2 and H2O.
The gas particles are arranged in a regular geometric pattern.
The gas particles are in random, constant, straight-line motion.
The gas particles are separated by very small distances, relative to their sizes.
The gas particles are strongly attracted to each other.
Solubility in water
Density at STP
Lower energy and lower entropy
Lower energy and higher entropy
Higher energy and lower entropy
Higher entropy and higher entropy