Atomic Concepts
Periodic Table
Physical Behavior of Matter 1
Physical Behavior of Matter 2
Nuclear
Mixed
100
These are the subatomic particles in order of charge (negative, neutral, positive)
What are electrons, neutrons, and protons?
100
representation of an atom or molecule using only the element symbol and the valence electron arrangement
What is a lewis dot diagram?
What is a lewis structure?
What is an electron dot diagram?
100
This element is a liquid at STP.
What is Mercury or Bromine?
100
An aqueous solution is classified as this type of mixture.
What is homogeneous?
100
The diagram below shows different radioactive emissions being fired through a magnetic field.
This radioactive particle could represent emanation #3.
What is.. an alpha particle? What is a positron? What is a proton?
100
This classification of matter consists of two or more different elements chemically combined in a fixed proportion.
What is a compound?
200
As an atom in the ground state changes to an atom in an excited state, the atom
What is absorbs energy?
200
the group of elements on the periodic table that do not follow the typical reactivity and valence electron trends
what is transition metals?
what is groups 3-12?
200
This type of reaction will cause the temperature of thes surroundings to increase.
What is exothermic reaction?
200
These changes in volume and temperature of the gas in the cylinder would decrease the frequency of collisions between the O2(g) molecules.
What is.. increase the volume and decrease the temperature?
What is 24.5 L > V and T < 298 K?
200
medical applications such as treating cancer and thyroid disorders, carbon dating, geological dating.
What are uses of radioisotopes?
200
The experiment responsible for discovering that all atoms contain negative particles embedded within.
What is the Cathode Ray Tube experiment?
300
Based on the data, the atomic mass of copper to the nearest hundredth.
What is 63.52?
300
An electron in this shell of strontium in the ground state has the most energy.
What is the 5th shell?
300
A mixture of sand and water are able to be separated by filtration due to this.
What is the sand is insoluble in water?
300
Mercury, water (1.000g/mL), carbon tetrachloride (1.595g/mL), and bromine are placed in a graduated cylinder and layers formed. Identity the order of layers from top to bottom.
What is... water, carbon tetrachloride, bromine and mercury?
300
This is the balanced nuclear equation for the natural transmutation of Technetium-99.
What is...
300
The melting point of the substance.
What is... 90°C?
400
The gold foil experiment led to the conclusion that each atom in the foil was composed mostly of empty space. This specific observation determined this fact.
What is most alpha particles passed through the foil undeflected?
400
This group of elements are the most reactive metals and why.
What is the alkali metals?
What is they lose their valence electron the most easily?
400
The final volume of the helium gas.
What is 214 mL?
400
A sample of helium gas, He(g), is placed in a rigid cylinder sealed with a movable piston under constant temperature. Compare the number of helium atoms in the cylinder at volume of 2.5 mL and 1.0 atm to the number of helium atoms in the cylinder when the volume is changed to 1.25 mL and 2.0 atm.
What is.. the number of atoms remains the same.
400
This mass of an original 5.60-gram sample of iron-53 that remains unchanged after 25.53 minutes.
What is 0.70 grams?
400
Nitrogen gas and oxygen gas make up about 99% of Earth's atmosphere. Other atmospheric gases include argon, carbon dioxide, methane, ozone, hydrogen, etc. Data for the concentration of CO2(g) from 1960 to 2000 are shown in the table below.
The atmopshere is classified as a mixture for this reason.
What is.. the concentration of carbon dioxide can vary?
What is the atmopshere contains various gases?
500
In what order should these historical developments leading to the modern model of the atom be placed. (From oldest to youngest)
Most of the atom is empty space
The atom is a hard sphere
Electrons exist in orbitals outside the nucleus
What is... the atom is a hard sphere, most of the atom is empty space, electrons exist in orbitals outside the nucleus?
500
The reason that Fluorine has a greater electronegativity than Carbon.
What is... a stronger nuclear charge?
500
The below diagrams show three samples of matter at STP.
The average kinetic energy of sample B equals the average kinetic energy of sample C for this reason.
What is... the samples are at the same temperature?
500
The temperature range in which the entire sample is a liquid.
What is... 801°C to 1465°C?
500
The reason the decay series of U-238 ends with Pb-206.
What is.. the nucleus if Pb-206 is stable?
500
The heating curve below represents addition of heat to 5.00 grams of liquid ammonia starting at 210 K. The heat is not added at a constant rate.
This diagram represents the phase(s) of ammonia at segment CD.
