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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 unit of mass that is exactly 1/12 the mass of a carbon-12atom - or 1.660 540 × 10-27 kg
nuclear force
Principle Quantum Number
atomic mass unit
Aufaub principle
2. An explanation of how phenomena occur and how data or events are related
model
atomic number
element
Aufaub principle
3. Lowest energy state of an atom.
volume
halogens
ground state
precision
4. The 14 elements with the atomic numbers 90-103.
nuclide
electronegativity
actinide
scientific notation n where the factor M is a scientific notation
5. 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
law of definite proportions
chemical
percent error
6. The elements of group 1 of the periodic table.
anion
significant figure
alkali metals
product
7. Two quantities that give a constant value when one is divided by the other
direct proportion
Pauli exclusion principle
quantum
continuous spectrum
8. Two quantities that have a constant mathematical product
derived unit
homogeneous
inverse proportion
weight
9. Numbers written in the form M ×10 number greater than or equal to 1 but less than 10 and n is a whole number
hertz
scientific notation n where the factor M is a scientific notation
orbital
hypothesis
10. The amount of space occupied by an object
volume
alkaline-earth metals
quantity
atom
11. The elements of group 2 of the periodic table.
pure substance
alkaline-earth metals
density
ion
12. The p-block elements together with the s-block elements.
atomic mass unit
atomic radius
main-group elements
actinide
13. A horizontal row of elements in the periodic table
frequency
density
homogeneous
period
14. Mass is neither created nor destroyed duringordinary chemical or physical reactions
chemical property
law of conservation of mass
Avogadro's number
direct proportion
15. An element that is a good conductor of heat and electricity
metal
matter
average atomic mass
noble gas
16. Number of waves that pass a given point in a specific time - usually one second.
atom
frequency
Heisenberg Uncertainty Principle
quantity
17. The ability of a substance to undergo a change that transforms it into a different substance
period
chemical change
mass number
chemical property
18. Anything that has mass and takes up space
atom
matter
pure substance
ground state
19. An element that has some characteristics of metals and some characteristics of nonmetals
atomic number
SI (Le Système International d'Unités
metalloid
percent error
20. Particle of electromagnetic radiation having zero mass and carrying a quantum of energy.
chemical change
photon
mixture
inverse proportion
21. Specify the properties of atomic orbitals and the properties of electrons in orbitals.
periodic table
Hund's rule
atom
Quantum Numbers
22. State in which an atom has a higher potential energy than it has in it's ground state.
scientific notation n where the factor M is a scientific notation
excited state
Angular Momentum Quantum Number
group
23. States that it is impossible to determine simultaneously both the position and velocity of an electron or any other particle.
Heisenberg Uncertainty Principle
molar mass
inverse proportion
conversion factor
24. A measure of the amount of matter
density
mass
theory
physical change
25. The 14 elements with the atomic numbers 58-71.
mass
direct proportion
accuracy
lanthanide
26. A specific portion of matter in a given region of space that has been selected for study during an experiment or observation
Pauli exclusion principle
system
scientific method
main-group elements
27. A characteristic that can be observed or measured without changing the identity of the substance
physical property
atomic number
inverse proportion
periodic table
28. A logical approach to solving problems by observing and collecting data - formulating hypotheses - testing hypotheses - and formulating theories that are supported by data
scientific notation n where the factor M is a scientific notation
ionization
main-group elements
scientific method
29. Describes mathematically the wave properties of electrons and other very small particles.
Aufaub principle
significant figure
Quantum Theory
Principle Quantum Number
30. The energy change that occurs when an electron is acquired by a neutral atom.
chemical reaction
electron affinity
noble gas configuration
Quantum Theory
31. The energy required to remove one electron from a neutral atom of an element.
ionization energy
extensive property
Quantum Numbers
heterogeneous
32. Any digit in a measurement that is known with certainty plus one final digit - which is somewhat uncertain or is estimated
ionization
significant figure
pure substance
atom
33. The state of matter in which a substance has neither definite volume nor definite shape
Hund's rule
Heisenberg Uncertainty Principle
gas
chemical change
34. An atom or group of bonded atoms that has a positive or negative charge.
inverse proportion
SI (Le Système International d'Unités
gas
ion
35. A property that depends on the amount of matter that is present
noble gas configuration
ion
chemical reaction
extensive property
36. Combination of all the forms of electromagnetic radiation.
electromagnetic spectrum
physical property
ion
compound
37. The weighted average of the atomic masses of thenaturally occurring isotopes of an element
hertz
hypothesis
average atomic mass
element
38. The suborbitals of an atom. (S - P - D - F)
extensive property
valence electrons
model
Angular Momentum Quantum Number
39. The Group 18 elements (helium - neon - argon - krypton - xenon - and radon)
electromagnetic radiation
noble gas
Avogadro's number
theory
40. Not having a uniform composition throughout
chemical property
quantity
atomic number
heterogeneous
41. A unit that is a combination of SI base units
gas
ground state
metal
derived unit
42. A ratio derived from the equality between two different units that can be used to convert from one unit to the other
physical property
extensive property
conversion factor
actinide
43. The general term for any isotope of any element
precision
intensive property
product
nuclide
44. A measure of the ability of an atom in a chemical compound to attract electrons from another atom in the compound.
nuclide
theory
electronegativity
accuracy
45. A reaction in which one or more substances are converted into different substances
chemical reaction
atomic number
chemistry
solid
46. Distance between corresponding points on adjacent waves.
chemical change
wavelength
frequency
physical property
47. 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
Quantum Numbers
law of definite proportions
law of conservation of mass
atomic mass unit
48. 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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49. Emission of electrons from a metal when light shines on a metal.
gas
wavelength
matter
photoelectric effect
50. The closeness of a set of measurements of the same quantity made in the same way
photon
mixture
precision
volume