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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. A substance that is formed by a chemical change
matter
product
line-emission spectrum
nuclide
2. Minimum quantity of energy that can be lost or gained by an atom.
quantum
electronegativity
wavelength
alkaline-earth metals
3. A form of energy that exhibits wavelike behavior as it travels through space (3.00x108 m/s)
nuclear force
lanthanide
electromagnetic radiation
electron affinity
4. An atom or group of bonded atoms that has a positive or negative charge.
law of conservation of mass
Heisenberg Uncertainty Principle
liquid
ion
5. A substance that reacts in a chemical change
derived unit
mass number
reactant
change of state
6. Any substance that has a definite composition
group
chemical
mixture
homogeneous
7. A positive ion.
inverse proportion
electronegativity
alkaline-earth metals
cation
8. The ability of a substance to undergo a change that transforms it into a different substance
alkali metals
chemical
chemical property
actinide
9. A ratio derived from the equality between two different units that can be used to convert from one unit to the other
conversion factor
family
Hund's rule
atomic radius
10. The weighted average of the atomic masses of thenaturally occurring isotopes of an element
chemical property
average atomic mass
Quantum Numbers
quantity
11. Something that has magnitude - size - or amount
reactant
quantity
extensive property
chemical change
12. The 14 elements with the atomic numbers 90-103.
density
actinide
electron configuration
frequency
13. The elements of group 17 of the periodic table.
hertz
chemical reaction
atomic radius
halogens
14. The suborbitals of an atom. (S - P - D - F)
Angular Momentum Quantum Number
gas
halogens
law of conservation of mass
15. Which way it spins. (up or down)
percent error
atomic number
Spin Quantum Number
Avogadro's number
16. 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
nuclear force
law of multiple proportions
theory
Aufaub principle
17. Particle of electromagnetic radiation having zero mass and carrying a quantum of energy.
periodic law
accuracy
photon
conversion factor
18. The study of the composition - structure - and properties of matter and the changes it undergoes
continuous spectrum
chemistry
solid
halogens
19. A property that does not depend on the amount of matter present
hertz
ion
product
intensive property
20. A horizontal row of elements in the periodic table
continuous spectrum
chemistry
period
atom
21. A vertical column of the periodic table
group
mole
Heisenberg Uncertainty Principle
precision
22. A 3D region around the nucleus that indicates the probable location of an electron.
matter
orbital
noble gas
accuracy
23. A unit that is a combination of SI base units
derived unit
law of multiple proportions
matter
theory
24. A change in which one or more substances are converted into different substances
Heisenberg Uncertainty Principle
chemical change
intensive property
Quantum Numbers
25. The measurement system accepted worldwide
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26. The energy required to remove one electron from a neutral atom of an element.
homogeneous
electron configuration
ionization energy
SI (Le Système International d'Unités
27. Atoms of the same element that have different masses
isotopes
SI (Le Système International d'Unités
electron configuration
scientific notation n where the factor M is a scientific notation
28. An element that has some characteristics of metals and some characteristics of nonmetals
electronegativity
inverse proportion
metalloid
system
29. A negative ion.
ionization
intensive property
Avogadro's number
anion
30. The smallest unit of an element that maintains the properties of that element
physical property
element
atom
Magnetic Quantum Number
31. A blend of two or more kinds of matter - each of which retains its own identity and properties
period
mixture
precision
Angular Momentum Quantum Number
32. Two quantities that have a constant mathematical product
precision
electron configuration
scientific method
inverse proportion
33. State in which an atom has a higher potential energy than it has in it's ground state.
excited state
Magnetic Quantum Number
ionization energy
intensive property
34. The closeness of a set of measurements of the same quantity made in the same way
Aufaub principle
precision
atomic number
mixture
35. One wave per second.
model
chemical reaction
hertz
gas
36. An element that is a good conductor of heat and electricity
percent error
chemical
metal
photon
37. The state of matter in which the substance has definite volume and definite shape
atomic mass unit
ionization energy
metalloid
solid
38. The mass of one mole of a pure substance
electromagnetic radiation
metalloid
theory
molar mass
39. Describes mathematically the wave properties of electrons and other very small particles.
Quantum Theory
quantity
Hund's rule
frequency
40. The elements of group 2 of the periodic table.
alkaline-earth metals
cation
group
weight
41. Not having a uniform composition throughout
heterogeneous
ionization energy
wavelength
matter
42. The smallest unit of an element that maintains the properties of that element
element
Aufaub principle
frequency
atom
43. The physical and chemical properties of the elements are periodic functions of their atomic numbers.
ground state
periodic law
atom
nuclide
44. A logical approach to solving problems by observing and collecting data - formulating hypotheses - testing hypotheses - and formulating theories that are supported by data
mass
metal
scientific method
period
45. An electron occupies the lowest-energy orbital that can receive it
element
Spin Quantum Number
Quantum Theory
Aufaub principle
46. 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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47. A high-temperature physical state of matter in which atoms lose their electrons
Heisenberg Uncertainty Principle
plasma
scientific notation n where the factor M is a scientific notation
chemistry
48. Any process that results in the formation of an ion.
chemical reaction
quantum
ionization
precision
49. The state of matter in which the substance has a definite volume but an indefinite shape
matter
scientific notation n where the factor M is a scientific notation
liquid
group
50. Any digit in a measurement that is known with certainty plus one final digit - which is somewhat uncertain or is estimated
theory
significant figure
matter
derived unit