Theorize This!
Parts of the Atom
Periodic Table Trivia
Structure of the Periodic Table
Nuclear Chemistry
100
The plum pudding model was developed by this scientist.
Who is Thomson?
100
Most of an atom's mass is located here.
What is the nucleus?
100
This element is the most common one in the entire universe.
What is hydrogen?
100
This characteristic does not vary according to rows and columns of the periodic table. electronegativity/radioactivity/ionization energy/atomic radius
What is radioactivity?
100
This type of radiation has the lowest penetrating ability.
What is alpha particle radiation?
200
Neils Bohr proposed this atomic theory.
What is the orbital model?
200
This number found on an element of the periodic table describes the number of protons found in an atoms of that particular element.
What is the atomic number?
200
This element was the first one to be made artificially.
What is technetium?
200
Electronegativity decreases as you move this direction on the periodic table.
What is down a column?
200
This type of radiation has the greatest penetrating power.
What is gamma radiation?
300
Dalton's model of the atom added these subatomic particles to the plum pudding model.
What are electrons?
300
A neutron is most equal in mass to this other subatomic particle.
What is a proton?
300
The country of Argentina is named after this element.
What is silver (Ag)?
300
Atomic radius decreases as you move this direction on the periodic table.
What is up a column?
300
The amount of time it takes for half of a sample to decay is called this.
What is its half-life?
400
The nuclear model of the atom was proposed by this scientist.
Who is Rutherford?
400
In order to create a negative charge on an atom, an element must gain these subatomic particles.
What are electrons?
400
Diamonds are a variation of this element.
What is carbon?
400
Halogens have this many valence electrons.
What is 7?
400
This type of radioactive particle contains 2 protons.
What is alpha particle?
500
This experiment showed us that there are electrons present in an atom.
What is the cathode ray tube experiment?
500
If the atomic number of lead is 82 and its atomic mass is 207, determine the number of protons, neutrons, and electrons.
What is 82 protons, 125 neutrons, and 82 electrons.
500
This element is the only one to be a liquid at room temperature, AND it dissolves gold and silver.
What is mercury?
500
Alkaline earth metals have this many valence electrons.
What is 2?
500
Gamma rays have (short/long) wavelengths, and (low/high) frequency.
What is short wavelength and high frequency?
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