Chemical Symbols
Chemical Bonds
Atom Identification
Radioactive Isotopes
Chemical Model
100
H
Hydrogen
100
Ionic bonds take place between what type of elements?
Metal and a non-metal
100
What part of the atoms contains almost all of the mass?
The nucleus
100
List the three types of radiation.
Alpha, Beta, Gamma.
100
Who discovered the electron?
Thomson
200
Hg
Mercury
200
Covalent bonds take place between what types of elements?
Two non-metals
200
What part of the atom do electrons move in orbits around the nucleus?
The shell
200
The weakest type of radiation.
Alpha Radiation.
200
Who discovered the nucleus?
Rutherford
300
Au
Gold
300
The type of bond where atoms share a pair of electrons.
Covalent Bond
300
What subatomic particle differentiates one atom from another?
The number of protons.
300
The strongest type of radiation.
Gamma radiation
300
Who created this model?
Bohr
400
Fe
Iron
400
The type of bond where atoms transfer electrons.
Ionic bond
400
What term refers to the number of protons in the nucleus?
The atomic number.
400
Isotopes are atoms of the same element with a different number of _______.
Neutrons
400
Who proposed the Plum Pudding model?
Thomson
500
Ag
Silver
500
What is the exception to the rule: covalent substances form molecules.
Covalent crystals.
500
What term refers to the number of particles in the nucleus? (Protons + neutrons)
Mass number.
500
List two applications of radioactive isotopes.
Producing energy, medicine, agriculture, archeology, industry.
500
Who discovered that electrons orbit at certain distances from the nucleus?
Bohr