Atomic Theorists
Isotopes, Electrons, Protons, and Neutrons
Mixtures, Properties/ Changes, States of Matter
Atomic Experiments/ Models
Periodic table
100
The first person to present the idea of atoms.
Who is Democritus?
100
The charges of protons, neutrons, and electrons.
What is +1, 0, -1?
100
Taste, states of matter, and boiling point are all examples of _________ properties.
What is physical?
100
The experiment that proved that atoms are composed of mostly empty space. (+100 for the name of the scientist who performed it)
What is the gold foil experiment? Who is Ernest Rutherford?
100
The symbol and number of protons for arsenic.
What is As and 33?
200
The scientist who developed the nuclear model of the atom.
Who is Ernest Rutherford?
200
This element has 80 electrons.
What is mercury?
200
Baking bread is an example of a __________ change?
Water boiling is an example of a __________ change?
Burning wood is an example of a __________ change?
What is chemical, physical, chemical?
200
The experiment that was done to prove the existence of electrons. (+100 for the name of the scientist who performed it)
What is the cathode ray tube experiment? Who is J. J. Thomson?
200
The names of the columns and rows of a periodic table.
What are groups and periods?
300
The scientist who determined the magnitude of the electric charge on the electron.
Who is Robert Millikan?
300
Sulfur-32 in isotope notation with the atomic number, protons, neutrons, electrons, and symbol.
Written on board.
300
The 3 signs that a chemical reaction has occurred.
What is gas production, color change, and precipitate?
300
The experiment done to find the electric charge (and mass ratio) of an electron. (+100 for the name of the scientist who performed it)
What is the oil drop experiment? Who is Robert Millikan?
300
The number of families on the periodic table.
What is 10?
400
The scientist who discovered the neutron.
Who is James Chadwick?
400
Write the atomic number, protons, electrons, neutrons, atomic weight, mass number, and symbol for Tungsten.
What is 74, 74, 74, 110, 183.84, 184, and W?
400
Draw the particle arrangement of a gas, solid, and liquid. Label them accordingly.
Drawn on the board.
400
The experiment done to prove the existence of protons. (+100 if you tell me the name of the scientist)
What is the anode ray tube experiment? Who is Eugen Goldstein?
400
This element is located in the group "post transition metals" and has mass of 114.8 amu.
What is Indium?
500
The scientist who discovered the presence of protons.
Who is Eugene Goldstein?
500
Determine the error with the following isotope:
14 protons
27 mass number
14 electrons
13 neutrons
Incorrect atomic number.
500
Label the following as either HE, E, HO, or C.
1. Steel
2. Sand
3. Vinegar (CH3COOH)
4. Polonium foil
What is HO, HE, C, E?
500
Describe the Plum Pudding Model.
The plum pudding model stated that atoms were composed of a ball of positive matter and had negatively charged electrons dotted inside/ suspended within.
500
Explain the difference between mass number and atomic mass.
Mass numbers are rounded while atomic masses are straight from the periodic table in a decimal form.
600
The 4 main parts of Dalton's Atomic Theory.
What is:
1. All elements are composed of tiny indivisible particles.
2. Atoms of different elements can only chemically combine in simple whole-number ratios.
3. Chemical reactions occur when atoms separate from each other, join, or rearrange in different combinations. Atoms of one element are never changed into atoms of another element. Cannot be created or destroyed.
4. Atoms of different elements are not identical to each other, but atoms of the same element are identical.
600
The atomic mass of magnesium-24 and magnesium-25 when the mass and abundance of magnesium-24 are 24.30 amu and 87.93%, and the mass and abundance of magnesium-25 are 25.43 amu and 12.07%.
What is 24.4363 amu?
600
The law of conservation of mass states that ________________________________.
Matter cannot be created or destroyed in a chemical reaction.
600
The particle that Rutherford bombarded gold foil with.
+100 if you tell me the nuclear composition of this particle.
What is an alpha particle?
Helium nuclei: 2 protons and 2 neutrons
600
The amount of calcium, phosphorus, and oxygen atoms in calcium phosphate Ca3(PO4)2.
What is 3, 2, and 8?