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Test your basic knowledge |
Pre - AP Chemistry
Start Test
Study First
Subjects
:
pre-ap
,
science
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
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. Lowest energy state of an atom.
intensive property
law of conservation of mass
ground state
electron affinity
2. The 14 elements with the atomic numbers 58-71.
atom
atomic radius
ionization energy
lanthanide
3. An electron occupies the lowest-energy orbital that can receive it
Aufaub principle
metalloid
model
accuracy
4. Any process that results in the formation of an ion.
electromagnetic spectrum
ionization
metal
change of state
5. The number of protons in the nucleus of each atom of an element
atomic number
Hund's rule
gas
homogeneous
6. A vertical column of the periodic table
nuclear force
average atomic mass
family
atom
7. The general term for any isotope of any element
mass number
nuclide
electron affinity
wavelength
8. A characteristic that can be observed or measured without changing the identity of the substance
electronegativity
physical property
group
significant figure
9. A pure substance made of only one kind of atom
chemistry
chemical reaction
plasma
element
10. Atoms of the same element that have different masses
isotopes
physical change
chemical change
alkali metals
11. A ratio derived from the equality between two different units that can be used to convert from one unit to the other
cation
conversion factor
electron configuration
physical change
12. Which way it spins. (up or down)
law of multiple proportions
chemical property
Spin Quantum Number
law of definite proportions
13. The smallest unit of an element that maintains the properties of that element
atom
conversion factor
continuous spectrum
mixture
14. The smallest unit of an element that maintains the properties of that element
percent error
matter
atomic radius
atom
15. A reaction in which one or more substances are converted into different substances
lanthanide
chemical reaction
pure substance
quantity
16. The total amount of energy level an atom has.
photoelectric effect
intensive property
atomic mass unit
Principle Quantum Number
17. A unit that is a combination of SI base units
derived unit
Heisenberg Uncertainty Principle
model
nuclear force
18. A measure of the amount of matter
mass
system
gas
chemistry
19. A vertical column of the periodic table
group
weight
extensive property
scientific notation n where the factor M is a scientific notation
20. Two quantities that give a constant value when one is divided by the other
direct proportion
electron affinity
frequency
law of conservation of mass
21. 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.
average atomic mass
periodic table
law of multiple proportions
reactant
22. A physical change of a substance from one state to another
nonmetal
isotopes
change of state
wavelength
23. 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
solid
law of definite proportions
physical property
nuclear force
24. A unit of mass that is exactly 1/12 the mass of a carbon-12atom - or 1.660 540 × 10-27 kg
ground state
atomic mass unit
metal
metalloid
25. The 14 elements with the atomic numbers 90-103.
system
noble gas
average atomic mass
actinide
26. Anything that has mass and takes up space
Principle Quantum Number
matter
wavelength
ground state
27. The measurement system accepted worldwide
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28. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance
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29. 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
physical property
law of multiple proportions
periodic table
compound
30. The Group 18 elements (helium - neon - argon - krypton - xenon - and radon)
pure substance
product
atom
noble gas
31. Any digit in a measurement that is known with certainty plus one final digit - which is somewhat uncertain or is estimated
family
orbital
alkaline-earth metals
significant figure
32. Specify the properties of atomic orbitals and the properties of electrons in orbitals.
chemical reaction
model
matter
Quantum Numbers
33. An outer main energy level occupied - in most cases - by 8 electrons
chemical reaction
frequency
atom
noble gas configuration
34. Narrow beam of the emitted light was shined through a prism - it was separated into four specific colors of the visible spectrum.
line-emission spectrum
precision
liquid
wavelength
35. Having a uniform composition throughout
mixture
chemical change
change of state
homogeneous
36. Not having a uniform composition throughout
Aufaub principle
heterogeneous
photoelectric effect
nuclear force
37. The elements of group 17 of the periodic table.
liquid
halogens
Aufaub principle
matter
38. The closeness of a set of measurements of the same quantity made in the same way
compound
precision
law of definite proportions
ionization
39. Numbers written in the form M ×10 number greater than or equal to 1 but less than 10 and n is a whole number
electromagnetic spectrum
excited state
mixture
scientific notation n where the factor M is a scientific notation
40. A blend of two or more kinds of matter - each of which retains its own identity and properties
main-group elements
Pauli exclusion principle
mixture
atom
41. A substance that has a fixed composition and differs from a mixture in that every sample of a given pure substance has exactly the same characteristic properties and composition
law of definite proportions
extensive property
percent error
pure substance
42. Something that has magnitude - size - or amount
photoelectric effect
quantity
density
plasma
43. Distance between corresponding points on adjacent waves.
quantity
atom
electromagnetic spectrum
wavelength
44. An atom or group of bonded atoms that has a positive or negative charge.
chemical reaction
ion
reactant
electromagnetic radiation
45. State in which an atom has a higher potential energy than it has in it's ground state.
plasma
ionization energy
excited state
physical property
46. An explanation of how phenomena occur and how data or events are related
chemical
direct proportion
model
quantum
47. Particle of electromagnetic radiation having zero mass and carrying a quantum of energy.
law of multiple proportions
SI (Le Système International d'Unités
orbital
photon
48. The elements of group 1 of the periodic table.
ground state
theory
average atomic mass
alkali metals
49. A broad generalization that explains a body of facts or phenomena
ionization
valence electrons
pure substance
theory
50. A measure of the gravitational pull on matter
extensive property
electron configuration
weight
nonmetal