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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 vertical column of the periodic table
family
homogeneous
Heisenberg Uncertainty Principle
mole
2. A measure of the ability of an atom in a chemical compound to attract electrons from another atom in the compound.
photoelectric effect
SI (Le Système International d'Unités
transition metals
electronegativity
3. 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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4. A measure of the amount of matter
mass
change of state
continuous spectrum
hertz
5. The state of matter in which the substance has a definite volume but an indefinite shape
halogens
liquid
solid
mass
6. Combination of all the forms of electromagnetic radiation.
reactant
electromagnetic spectrum
family
electron configuration
7. Anything that has mass and takes up space
matter
continuous spectrum
gas
mass number
8. A 3D region around the nucleus that indicates the probable location of an electron.
ground state
precision
liquid
orbital
9. A measure of the gravitational pull on matter
solid
model
matter
weight
10. A property that does not depend on the amount of matter present
intensive property
nuclear force
hypothesis
molar mass
11. Two quantities that have a constant mathematical product
liquid
inverse proportion
electron configuration
element
12. 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
ionization energy
electron configuration
law of multiple proportions
density
13. A value calculated by subtracting the experimental value from the accepted value - dividing the difference by the accepted value - and then multiplying by 100
Pauli exclusion principle
percent error
compound
periodic table
14. 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
precision
pure substance
Avogadro's number
law of multiple proportions
15. The suborbitals of an atom. (S - P - D - F)
percent error
Angular Momentum Quantum Number
alkali metals
alkaline-earth metals
16. Describes mathematically the wave properties of electrons and other very small particles.
Quantum Theory
electromagnetic spectrum
nuclear force
matter
17. A positive ion.
density
cation
element
matter
18. A form of energy that exhibits wavelike behavior as it travels through space (3.00x108 m/s)
weight
ionization
electromagnetic radiation
metal
19. An element that is a good conductor of heat and electricity
Quantum Numbers
nuclear force
alkali metals
metal
20. Emission of electrons from a metal when light shines on a metal.
photoelectric effect
weight
chemical change
periodic table
21. The smallest unit of an element that maintains the properties of that element
Heisenberg Uncertainty Principle
atom
electron affinity
conversion factor
22. The amount of a substance that contains as many particles as there areatoms in exactly 12 g of carbon-12
chemical property
mole
plasma
law of definite proportions
23. Mass is neither created nor destroyed duringordinary chemical or physical reactions
Quantum Numbers
photon
periodic law
law of conservation of mass
24. A short-range proton-neutron - proton-proton - or neutrorce that holds the nuclear particles together
change of state
transition metals
nuclear force
anion
25. The elements of group 2 of the periodic table.
alkaline-earth metals
homogeneous
excited state
reactant
26. The closeness of measurements to the correct or accepted value of the quantity measured
Avogadro's number
change of state
accuracy
lanthanide
27. A characteristic that can be observed or measured without changing the identity of the substance
lanthanide
atomic radius
physical property
noble gas configuration
28. An explanation of how phenomena occur and how data or events are related
plasma
family
model
volume
29. An element that is a poor conductor of heat and electricity
isotopes
matter
chemistry
nonmetal
30. Any process that results in the formation of an ion.
mixture
Spin Quantum Number
ionization
mass number
31. A vertical column of the periodic table
group
derived unit
period
law of conservation of mass
32. A pure substance made of only one kind of atom
isotopes
lanthanide
element
photon
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
mass number
mass
atomic radius
scientific notation n where the factor M is a scientific notation
34. An electron occupies the lowest-energy orbital that can receive it
electronegativity
Aufaub principle
Avogadro's number
accuracy
35. The p-block elements together with the s-block elements.
weight
solid
chemical property
main-group elements
36. The emission of a continuous range of frequencies of electromagnetic radiation.
continuous spectrum
atomic number
electromagnetic radiation
percent error
37. A testable statement
heterogeneous
hypothesis
chemical reaction
Hund's rule
38. A substance that is made from the atoms of two or more elements that are chemically bonded
valence electrons
compound
plasma
derived unit
39. A property that depends on the amount of matter that is present
solid
extensive property
Quantum Numbers
period
40. Atoms of the same element that have different masses
period
Hund's rule
pure substance
isotopes
41. A negative ion.
anion
noble gas configuration
periodic law
accuracy
42. One wave per second.
noble gas configuration
hertz
mass number
Principle Quantum Number
43. A unit of mass that is exactly 1/12 the mass of a carbon-12atom - or 1.660 540 × 10-27 kg
excited state
reactant
quantum
atomic mass unit
44. Lowest energy state of an atom.
mass number
precision
ground state
orbital
45. Particle of electromagnetic radiation having zero mass and carrying a quantum of energy.
density
intensive property
photon
ground state
46. 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.
periodic table
compound
molar mass
significant figure
47. A horizontal row of elements in the periodic table
period
electronegativity
law of multiple proportions
chemical change
48. A ratio derived from the equality between two different units that can be used to convert from one unit to the other
conversion factor
atomic number
Spin Quantum Number
molar mass
49. The weighted average of the atomic masses of thenaturally occurring isotopes of an element
Pauli exclusion principle
line-emission spectrum
average atomic mass
lanthanide
50. A change in which one or more substances are converted into different substances
electron affinity
Hund's rule
chemical change
law of definite proportions