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Test your basic knowledge |
Pre - AP Chemistry
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Subjects
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pre-ap
,
science
Instructions:
Answer 50 questions in 15 minutes.
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.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. States that it is impossible to determine simultaneously both the position and velocity of an electron or any other particle.
metalloid
Heisenberg Uncertainty Principle
actinide
molar mass
2. A broad generalization that explains a body of facts or phenomena
excited state
atom
noble gas configuration
theory
3. Anything that has mass and takes up space
valence electrons
scientific notation n where the factor M is a scientific notation
matter
Aufaub principle
4. The energy change that occurs when an electron is acquired by a neutral atom.
alkaline-earth metals
family
electron configuration
electron affinity
5. An explanation of how phenomena occur and how data or events are related
model
ionization energy
alkali metals
weight
6. Distance between corresponding points on adjacent waves.
metal
wavelength
inverse proportion
physical change
7. A value calculated by subtracting the experimental value from the accepted value - dividing the difference by the accepted value - and then multiplying by 100
percent error
law of definite proportions
product
Pauli exclusion principle
8. A specific portion of matter in a given region of space that has been selected for study during an experiment or observation
system
physical change
line-emission spectrum
Hund's rule
9. Any substance that has a definite composition
chemical
electromagnetic spectrum
period
volume
10. Orbitals of equal energy are each occupied by one electron before any orbital is occupied by a second electron - and all electrons in singly occupied orbitals must have the same spin state.
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11. Any digit in a measurement that is known with certainty plus one final digit - which is somewhat uncertain or is estimated
valence electrons
significant figure
lanthanide
Magnetic Quantum Number
12. Describes mathematically the wave properties of electrons and other very small particles.
gas
ion
electromagnetic radiation
Quantum Theory
13. State in which an atom has a higher potential energy than it has in it's ground state.
Quantum Numbers
chemical property
excited state
Pauli exclusion principle
14. The elements of group 1 of the periodic table.
heterogeneous
electron configuration
ion
alkali metals
15. The p-block elements together with the s-block elements.
atom
Quantum Numbers
chemical
main-group elements
16. The measurement system accepted worldwide
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17. No two electrons in the same atom can have the same set of four quantum numbers
frequency
atomic number
Pauli exclusion principle
ground state
18. A logical approach to solving problems by observing and collecting data - formulating hypotheses - testing hypotheses - and formulating theories that are supported by data
transition metals
scientific method
Heisenberg Uncertainty Principle
derived unit
19. Minimum quantity of energy that can be lost or gained by an atom.
quantum
chemical reaction
chemical property
quantity
20. A property that does not depend on the amount of matter present
Quantum Theory
intensive property
nonmetal
element
21. Which suborbital. (Py - Px - Pz)
quantum
hertz
alkaline-earth metals
Magnetic Quantum Number
22. The closeness of a set of measurements of the same quantity made in the same way
photon
compound
precision
ionization
23. Any process that results in the formation of an ion.
SI (Le Système International d'Unités
noble gas
mole
ionization
24. An element that is a good conductor of heat and electricity
metal
chemical property
orbital
line-emission spectrum
25. A positive ion.
continuous spectrum
cation
atomic radius
metal
26. The ratio of mass to volume or mass divided by volume
atom
density
ion
accuracy
27. If two or more different compounds arecomposed of the same two elements - then the ratio of the masses of the secondelement combined with a certain mass of the first element is always a ratio ofsmall whole numbers
law of multiple proportions
photoelectric effect
orbital
weight
28. The d-block elements are metals with typical metallic properties.
mole
Quantum Numbers
Spin Quantum Number
transition metals
29. The study of the composition - structure - and properties of matter and the changes it undergoes
chemistry
law of conservation of mass
alkaline-earth metals
isotopes
30. A form of energy that exhibits wavelike behavior as it travels through space (3.00x108 m/s)
anion
halogens
SI (Le Système International d'Unités
electromagnetic radiation
31. Which way it spins. (up or down)
volume
matter
change of state
Spin Quantum Number
32. Mass is neither created nor destroyed duringordinary chemical or physical reactions
continuous spectrum
law of conservation of mass
noble gas configuration
scientific method
33. The state of matter in which a substance has neither definite volume nor definite shape
heterogeneous
gas
noble gas
conversion factor
34. The smallest unit of an element that maintains the properties of that element
atom
direct proportion
Magnetic Quantum Number
density
35. The state of matter in which the substance has a definite volume but an indefinite shape
electromagnetic spectrum
continuous spectrum
electron affinity
liquid
36. The number of protons in the nucleus of each atom of an element
pure substance
atomic number
hertz
significant figure
37. The energy required to remove one electron from a neutral atom of an element.
ionization energy
product
ionization
intensive property
38. The elements of group 2 of the periodic table.
Avogadro's number
alkaline-earth metals
ion
periodic table
39. The 14 elements with the atomic numbers 58-71.
ionization energy
alkali metals
wavelength
lanthanide
40. Not having a uniform composition throughout
homogeneous
atomic mass unit
heterogeneous
ground state
41. A short-range proton-neutron - proton-proton - or neutrorce that holds the nuclear particles together
photon
conversion factor
nuclear force
metalloid
42. The smallest unit of an element that maintains the properties of that element
atom
Magnetic Quantum Number
Avogadro's number
conversion factor
43. Two quantities that have a constant mathematical product
percent error
inverse proportion
ionization energy
pure substance
44. The closeness of measurements to the correct or accepted value of the quantity measured
physical property
electromagnetic radiation
accuracy
quantity
45. A change in which one or more substances are converted into different substances
element
actinide
change of state
chemical change
46. A chemical compound contains the same elementsin exactly the same proportions by mass regardless of the size of the sample orthe source of the compound
alkaline-earth metals
law of definite proportions
Heisenberg Uncertainty Principle
ionization energy
47. A 3D region around the nucleus that indicates the probable location of an electron.
scientific notation n where the factor M is a scientific notation
orbital
heterogeneous
Quantum Theory
48. A unit that is a combination of SI base units
compound
hertz
theory
derived unit
49. The total amount of energy level an atom has.
mass number
Principle Quantum Number
weight
nuclide
50. An arrangement of the elements in order of their atomic numbers so that the elements with similar properties fall in the same column or group.
quantity
periodic table
halogens
actinide
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