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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. 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
homogeneous
law of multiple proportions
mass
2. The smallest unit of an element that maintains the properties of that element
electron affinity
atom
homogeneous
atomic number
3. A substance that is formed by a chemical change
transition metals
Hund's rule
product
mass
4. A property that does not depend on the amount of matter present
intensive property
electronegativity
element
wavelength
5. The amount of space occupied by an object
percent error
volume
line-emission spectrum
Pauli exclusion principle
6. The 14 elements with the atomic numbers 90-103.
accuracy
solid
actinide
weight
7. Particle of electromagnetic radiation having zero mass and carrying a quantum of energy.
solid
Principle Quantum Number
physical change
photon
8. 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
homogeneous
transition metals
law of definite proportions
precision
9. Two quantities that give a constant value when one is divided by the other
heterogeneous
plasma
atom
direct proportion
10. Narrow beam of the emitted light was shined through a prism - it was separated into four specific colors of the visible spectrum.
chemical reaction
change of state
line-emission spectrum
nuclear force
11. Combination of all the forms of electromagnetic radiation.
scientific method
physical change
change of state
electromagnetic spectrum
12. A change in which one or more substances are converted into different substances
ionization
mixture
Pauli exclusion principle
chemical change
13. Atoms of the same element that have different masses
main-group elements
chemical
isotopes
Spin Quantum Number
14. No two electrons in the same atom can have the same set of four quantum numbers
transition metals
wavelength
Pauli exclusion principle
product
15. An electron occupies the lowest-energy orbital that can receive it
Aufaub principle
photoelectric effect
ion
orbital
16. A unit that is a combination of SI base units
Avogadro's number
valence electrons
hypothesis
derived unit
17. A pure substance made of only one kind of atom
element
anion
Pauli exclusion principle
chemical
18. A reaction in which one or more substances are converted into different substances
electron configuration
anion
chemical reaction
Quantum Numbers
19. A testable statement
alkali metals
hypothesis
scientific method
electron affinity
20. A logical approach to solving problems by observing and collecting data - formulating hypotheses - testing hypotheses - and formulating theories that are supported by data
scientific method
derived unit
law of definite proportions
Quantum Numbers
21. The study of the composition - structure - and properties of matter and the changes it undergoes
chemistry
Hund's rule
physical change
volume
22. A broad generalization that explains a body of facts or phenomena
wavelength
derived unit
theory
photon
23. A value calculated by subtracting the experimental value from the accepted value - dividing the difference by the accepted value - and then multiplying by 100
excited state
model
percent error
Pauli exclusion principle
24. A negative ion.
anion
Avogadro's number
significant figure
molar mass
25. The electrons available to be lost - gained - or shared in the formation of chemical compounds.
Hund's rule
hypothesis
valence electrons
electron configuration
26. A short-range proton-neutron - proton-proton - or neutrorce that holds the nuclear particles together
extensive property
quantum
atom
nuclear force
27. Something that has magnitude - size - or amount
electromagnetic spectrum
quantity
percent error
chemical
28. The Group 18 elements (helium - neon - argon - krypton - xenon - and radon)
family
noble gas
alkali metals
periodic law
29. One wave per second.
hertz
Heisenberg Uncertainty Principle
pure substance
intensive property
30. The physical and chemical properties of the elements are periodic functions of their atomic numbers.
nuclear force
ionization energy
periodic law
law of conservation of mass
31. A ratio derived from the equality between two different units that can be used to convert from one unit to the other
law of definite proportions
periodic law
Aufaub principle
conversion factor
32. The closeness of measurements to the correct or accepted value of the quantity measured
excited state
accuracy
average atomic mass
mole
33. Numbers written in the form M ×10 number greater than or equal to 1 but less than 10 and n is a whole number
volume
scientific notation n where the factor M is a scientific notation
quantum
noble gas
34. A change in a substance that does not involve a change in the identity of the substance
physical change
hypothesis
law of conservation of mass
anion
35. A property that depends on the amount of matter that is present
accuracy
scientific notation n where the factor M is a scientific notation
noble gas
extensive property
36. Any substance that has a definite composition
nuclear force
noble gas configuration
chemical
system
37. The 14 elements with the atomic numbers 58-71.
extensive property
lanthanide
hertz
Quantum Numbers
38. 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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39. The total amount of energy level an atom has.
Avogadro's number
Principle Quantum Number
group
continuous spectrum
40. A horizontal row of elements in the periodic table
inverse proportion
period
scientific notation n where the factor M is a scientific notation
chemical property
41. The weighted average of the atomic masses of thenaturally occurring isotopes of an element
pure substance
average atomic mass
atomic number
weight
42. Not having a uniform composition throughout
physical change
Quantum Numbers
heterogeneous
halogens
43. An outer main energy level occupied - in most cases - by 8 electrons
homogeneous
family
Avogadro's number
noble gas configuration
44. A blend of two or more kinds of matter - each of which retains its own identity and properties
mixture
physical property
change of state
mass number
45. The closeness of a set of measurements of the same quantity made in the same way
product
ionization energy
halogens
precision
46. The energy change that occurs when an electron is acquired by a neutral atom.
metalloid
ionization energy
electron affinity
direct proportion
47. Lowest energy state of an atom.
cation
scientific notation n where the factor M is a scientific notation
ground state
change of state
48. Having a uniform composition throughout
electron configuration
wavelength
homogeneous
chemistry
49. The elements of group 2 of the periodic table.
Spin Quantum Number
electron configuration
alkaline-earth metals
noble gas configuration
50. Describes mathematically the wave properties of electrons and other very small particles.
Quantum Theory
transition metals
scientific notation n where the factor M is a scientific notation
atomic mass unit