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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
atomic mass unit
theory
law of conservation of mass
electron configuration
2. A short-range proton-neutron - proton-proton - or neutrorce that holds the nuclear particles together
precision
nuclear force
law of multiple proportions
compound
3. A negative ion.
quantity
anion
extensive property
matter
4. The elements of group 1 of the periodic table.
intensive property
molar mass
lanthanide
alkali metals
5. A measure of the gravitational pull on matter
nuclide
weight
chemical change
scientific notation n where the factor M is a scientific notation
6. Numbers written in the form M ×10 number greater than or equal to 1 but less than 10 and n is a whole number
element
pure substance
scientific notation n where the factor M is a scientific notation
electromagnetic radiation
7. States that it is impossible to determine simultaneously both the position and velocity of an electron or any other particle.
noble gas
Heisenberg Uncertainty Principle
weight
line-emission spectrum
8. Not having a uniform composition throughout
ionization energy
chemical
transition metals
heterogeneous
9. One wave per second.
frequency
hertz
Avogadro's number
hypothesis
10. Lowest energy state of an atom.
nuclear force
family
ion
ground state
11. 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.
12. Two quantities that have a constant mathematical product
mixture
inverse proportion
intensive property
Hund's rule
13. The state of matter in which a substance has neither definite volume nor definite shape
gas
photoelectric effect
ion
frequency
14. Which way it spins. (up or down)
actinide
compound
solid
Spin Quantum Number
15. The 14 elements with the atomic numbers 90-103.
actinide
scientific method
periodic law
photoelectric effect
16. A change in a substance that does not involve a change in the identity of the substance
scientific notation n where the factor M is a scientific notation
electromagnetic spectrum
atomic radius
physical change
17. A measure of the amount of matter
photon
Pauli exclusion principle
ionization
mass
18. A 3D region around the nucleus that indicates the probable location of an electron.
orbital
metalloid
theory
gas
19. Which suborbital. (Py - Px - Pz)
Magnetic Quantum Number
periodic law
chemical property
hypothesis
20. The general term for any isotope of any element
nuclear force
nuclide
law of definite proportions
metalloid
21. The arrangement of electrons in an atom
Magnetic Quantum Number
electron configuration
plasma
nuclear force
22. The number of protons in the nucleus of each atom of an element
mole
actinide
main-group elements
atomic number
23. 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
frequency
product
24. An outer main energy level occupied - in most cases - by 8 electrons
chemistry
physical property
nonmetal
noble gas configuration
25. The electrons available to be lost - gained - or shared in the formation of chemical compounds.
valence electrons
ionization energy
law of conservation of mass
wavelength
26. A substance that is made from the atoms of two or more elements that are chemically bonded
percent error
compound
photoelectric effect
accuracy
27. Atoms of the same element that have different masses
isotopes
mole
halogens
hypothesis
28. The state of matter in which the substance has a definite volume but an indefinite shape
Avogadro's number
physical change
liquid
main-group elements
29. Two quantities that give a constant value when one is divided by the other
molar mass
direct proportion
electronegativity
heterogeneous
30. The ability of a substance to undergo a change that transforms it into a different substance
nonmetal
frequency
chemical property
family
31. 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
pure substance
solid
system
average atomic mass
32. A vertical column of the periodic table
heterogeneous
weight
group
nuclide
33. The mass of one mole of a pure substance
metalloid
solid
molar mass
plasma
34. A property that depends on the amount of matter that is present
heterogeneous
model
nuclear force
extensive property
35. Number of waves that pass a given point in a specific time - usually one second.
electromagnetic spectrum
conversion factor
ion
frequency
36. A property that does not depend on the amount of matter present
period
inverse proportion
intensive property
halogens
37. An explanation of how phenomena occur and how data or events are related
model
scientific notation n where the factor M is a scientific notation
weight
heterogeneous
38. Specify the properties of atomic orbitals and the properties of electrons in orbitals.
Aufaub principle
Quantum Numbers
electromagnetic spectrum
nuclear force
39. Emission of electrons from a metal when light shines on a metal.
product
photoelectric effect
plasma
law of conservation of mass
40. An element that is a good conductor of heat and electricity
precision
metal
group
law of multiple proportions
41. A testable statement
hypothesis
matter
system
mole
42. The energy change that occurs when an electron is acquired by a neutral atom.
inverse proportion
cation
product
electron affinity
43. The closeness of measurements to the correct or accepted value of the quantity measured
product
liquid
element
accuracy
44. The total amount of energy level an atom has.
Principle Quantum Number
isotopes
mass number
pure substance
45. A pure substance made of only one kind of atom
cation
homogeneous
plasma
element
46. A broad generalization that explains a body of facts or phenomena
theory
electromagnetic spectrum
percent error
law of definite proportions
47. A logical approach to solving problems by observing and collecting data - formulating hypotheses - testing hypotheses - and formulating theories that are supported by data
element
scientific method
halogens
reactant
48. State in which an atom has a higher potential energy than it has in it's ground state.
atom
Heisenberg Uncertainty Principle
chemistry
excited state
49. A vertical column of the periodic table
Heisenberg Uncertainty Principle
Principle Quantum Number
family
law of conservation of mass
50. Describes mathematically the wave properties of electrons and other very small particles.
Quantum Theory
theory
chemical reaction
physical change