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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
chemical
product
physical property
electromagnetic radiation
2. The energy required to remove one electron from a neutral atom of an element.
percent error
halogens
ground state
ionization energy
3. Lowest energy state of an atom.
atom
ground state
change of state
solid
4. An outer main energy level occupied - in most cases - by 8 electrons
noble gas configuration
noble gas
reactant
periodic law
5. Atoms of the same element that have different masses
hertz
product
isotopes
scientific method
6. The state of matter in which the substance has a definite volume but an indefinite shape
valence electrons
mass
theory
liquid
7. The number of protons in the nucleus of each atom of an element
homogeneous
SI (Le Système International d'Unités
atomic number
valence electrons
8. A substance that reacts in a chemical change
frequency
Angular Momentum Quantum Number
reactant
liquid
9. A broad generalization that explains a body of facts or phenomena
theory
Magnetic Quantum Number
atomic mass unit
continuous spectrum
10. The state of matter in which a substance has neither definite volume nor definite shape
periodic table
gas
wavelength
derived unit
11. The 14 elements with the atomic numbers 90-103.
chemical
percent error
ground state
actinide
12. The measurement system accepted worldwide
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13. Any digit in a measurement that is known with certainty plus one final digit - which is somewhat uncertain or is estimated
precision
atomic mass unit
significant figure
ionization energy
14. The Group 18 elements (helium - neon - argon - krypton - xenon - and radon)
valence electrons
quantum
noble gas
homogeneous
15. 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
chemical reaction
halogens
metal
law of definite proportions
16. A blend of two or more kinds of matter - each of which retains its own identity and properties
density
mass number
hypothesis
mixture
17. A measure of the amount of matter
chemistry
law of definite proportions
mass
transition metals
18. The state of matter in which the substance has definite volume and definite shape
solid
quantum
Heisenberg Uncertainty Principle
transition metals
19. An element that has some characteristics of metals and some characteristics of nonmetals
frequency
average atomic mass
Magnetic Quantum Number
metalloid
20. An element that is a poor conductor of heat and electricity
percent error
group
hypothesis
nonmetal
21. A reaction in which one or more substances are converted into different substances
Aufaub principle
chemical
cation
chemical reaction
22. A 3D region around the nucleus that indicates the probable location of an electron.
molar mass
frequency
lanthanide
orbital
23. The ability of a substance to undergo a change that transforms it into a different substance
gas
electromagnetic radiation
chemical property
volume
24. An atom or group of bonded atoms that has a positive or negative charge.
ion
model
electromagnetic radiation
chemistry
25. Which way it spins. (up or down)
gas
Spin Quantum Number
hypothesis
plasma
26. A short-range proton-neutron - proton-proton - or neutrorce that holds the nuclear particles together
reactant
atomic number
direct proportion
nuclear force
27. An element that is a good conductor of heat and electricity
wavelength
heterogeneous
metal
family
28. A specific portion of matter in a given region of space that has been selected for study during an experiment or observation
change of state
homogeneous
ionization energy
system
29. The study of the composition - structure - and properties of matter and the changes it undergoes
chemistry
reactant
Aufaub principle
scientific notation n where the factor M is a scientific notation
30. A property that does not depend on the amount of matter present
intensive property
theory
scientific notation n where the factor M is a scientific notation
quantum
31. Combination of all the forms of electromagnetic radiation.
electromagnetic spectrum
continuous spectrum
precision
accuracy
32. A change in which one or more substances are converted into different substances
inverse proportion
chemical change
frequency
ion
33. Distance between corresponding points on adjacent waves.
gas
wavelength
isotopes
valence electrons
34. Emission of electrons from a metal when light shines on a metal.
photon
photoelectric effect
physical property
change of state
35. 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
scientific notation n where the factor M is a scientific notation
transition metals
pure substance
ground state
36. The total amount of energy level an atom has.
Principle Quantum Number
Quantum Theory
SI (Le Système International d'Unités
group
37. The weighted average of the atomic masses of thenaturally occurring isotopes of an element
average atomic mass
homogeneous
law of multiple proportions
ionization
38. States that it is impossible to determine simultaneously both the position and velocity of an electron or any other particle.
metal
noble gas configuration
Heisenberg Uncertainty Principle
electromagnetic spectrum
39. The 14 elements with the atomic numbers 58-71.
lanthanide
chemical change
anion
metalloid
40. One wave per second.
hertz
electromagnetic spectrum
atom
hypothesis
41. Particle of electromagnetic radiation having zero mass and carrying a quantum of energy.
photon
extensive property
gas
periodic law
42. The elements of group 1 of the periodic table.
compound
chemical change
alkali metals
atomic radius
43. A characteristic that can be observed or measured without changing the identity of the substance
electron configuration
law of multiple proportions
physical property
physical change
44. A change in a substance that does not involve a change in the identity of the substance
Quantum Numbers
SI (Le Système International d'Unités
physical change
halogens
45. The mass of one mole of a pure substance
molar mass
frequency
periodic table
intensive property
46. A form of energy that exhibits wavelike behavior as it travels through space (3.00x108 m/s)
electromagnetic radiation
Pauli exclusion principle
liquid
noble gas configuration
47. No two electrons in the same atom can have the same set of four quantum numbers
Pauli exclusion principle
chemistry
pure substance
ion
48. An electron occupies the lowest-energy orbital that can receive it
hertz
continuous spectrum
Aufaub principle
accuracy
49. The elements of group 17 of the periodic table.
change of state
electron affinity
chemistry
halogens
50. Describes mathematically the wave properties of electrons and other very small particles.
atom
conversion factor
Quantum Theory
noble gas configuration