Scientist whose alpha particle scattering experiment led him to conclude that the nucleus of an atom contains a dense center of positive charge.
The first scientist to show that atoms emit negative particles using his cathode ray experiment.
First to use the term atom.
Identified the charge on the electron using the Oil Drop Experiment
Proposed the Law of Conservation of Matter.
What are the three subatomic particles?
The sum of protons and neutrons is the
The number of protons indicates the identity of the element and the
Atom with the same number of protons but different number of neutrons
Atom that has gained or lost electrons
How many electrons are in the outermost energy level of an electrically neutral atom of nitrogen
Explain the difference between C-14 and C-12?
The identity of an element depends on its
Electrons located in the outermost energy level
How many electrons can be in a 4f sublevel
The radioactive particle with the most mass.
When a gamma ray is given off during radioactive decay as a
The type of radiation that is most penetrating
When Thorium-234 goes through alpha decay what is produced?
When Thorium-234 goes through beta decay and gamma decay what is produced?
What is the electron configuration for He
Ions of an element contain a different number of
What is the Noble Gas configuration of Fe
High energy photon
When an electron jumps from n=5 to n=2 what color light is emitted?
Rutherford
Thomson
Democritus
Milikan
Dalton
protons, neutrons and electrons
atomic mass
atomic number
isotope
ion
5
Both have 6 protons; C-12 has 6 neutrons and C-14 has 8 neutrons.
atomic number
valence electrons
14
alpha particle
photon
gamma
Rn-230
Pa-234 and a photon
1s2
electrons
[Ar] 4s2 3d6
gamma ray
blue light
