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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. The state of matter in which the substance has definite volume and definite shape
derived unit
family
solid
Quantum Theory
2. A logical approach to solving problems by observing and collecting data - formulating hypotheses - testing hypotheses - and formulating theories that are supported by data
Avogadro's number
line-emission spectrum
scientific method
frequency
3. 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
hypothesis
pure substance
significant figure
solid
4. A characteristic that can be observed or measured without changing the identity of the substance
ion
physical property
alkali metals
average atomic mass
5. An electron occupies the lowest-energy orbital that can receive it
actinide
periodic table
Aufaub principle
homogeneous
6. A pure substance made of only one kind of atom
lanthanide
element
halogens
compound
7. 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
electron affinity
law of multiple proportions
mass
homogeneous
8. Minimum quantity of energy that can be lost or gained by an atom.
product
Principle Quantum Number
precision
quantum
9. The measurement system accepted worldwide
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10. The suborbitals of an atom. (S - P - D - F)
nonmetal
Angular Momentum Quantum Number
family
noble gas
11. The energy change that occurs when an electron is acquired by a neutral atom.
electron affinity
change of state
anion
frequency
12. A ratio derived from the equality between two different units that can be used to convert from one unit to the other
photon
element
conversion factor
gas
13. The elements of group 1 of the periodic table.
solid
law of definite proportions
alkali metals
theory
14. Any digit in a measurement that is known with certainty plus one final digit - which is somewhat uncertain or is estimated
atomic mass unit
electromagnetic radiation
significant figure
electron affinity
15. The elements of group 17 of the periodic table.
chemical property
cation
mixture
halogens
16. A substance that is made from the atoms of two or more elements that are chemically bonded
heterogeneous
volume
compound
electromagnetic radiation
17. The state of matter in which the substance has a definite volume but an indefinite shape
liquid
theory
electromagnetic radiation
frequency
18. Not having a uniform composition throughout
heterogeneous
law of conservation of mass
Principle Quantum Number
direct proportion
19. Two quantities that have a constant mathematical product
Heisenberg Uncertainty Principle
inverse proportion
group
volume
20. Any substance that has a definite composition
chemical
change of state
ionization
Aufaub principle
21. 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
law of definite proportions
alkali metals
excited state
hertz
22. The physical and chemical properties of the elements are periodic functions of their atomic numbers.
significant figure
photon
molar mass
periodic law
23. 1/2 the distance between the nuclei of identical atoms that are bonded together.
extensive property
atomic radius
gas
Quantum Numbers
24. No two electrons in the same atom can have the same set of four quantum numbers
noble gas
Pauli exclusion principle
Aufaub principle
physical change
25. The study of the composition - structure - and properties of matter and the changes it undergoes
quantum
alkaline-earth metals
transition metals
chemistry
26. The 14 elements with the atomic numbers 58-71.
law of multiple proportions
lanthanide
quantum
hertz
27. The Group 18 elements (helium - neon - argon - krypton - xenon - and radon)
nonmetal
Angular Momentum Quantum Number
noble gas
scientific method
28. A measure of the ability of an atom in a chemical compound to attract electrons from another atom in the compound.
Aufaub principle
electronegativity
line-emission spectrum
mixture
29. The arrangement of electrons in an atom
electron configuration
heterogeneous
nuclear force
atomic number
30. A reaction in which one or more substances are converted into different substances
precision
chemical reaction
volume
mass
31. A broad generalization that explains a body of facts or phenomena
electronegativity
theory
SI (Le Système International d'Unités
lanthanide
32. A specific portion of matter in a given region of space that has been selected for study during an experiment or observation
matter
pure substance
system
electron configuration
33. A physical change of a substance from one state to another
noble gas
Magnetic Quantum Number
metalloid
change of state
34. An element that is a good conductor of heat and electricity
metal
mole
product
volume
35. A vertical column of the periodic table
periodic law
atom
group
mixture
36. Combination of all the forms of electromagnetic radiation.
noble gas
chemical reaction
electromagnetic spectrum
Quantum Numbers
37. A substance that reacts in a chemical change
electron configuration
change of state
reactant
frequency
38. The d-block elements are metals with typical metallic properties.
SI (Le Système International d'Unités
transition metals
Heisenberg Uncertainty Principle
ground state
39. The mass of one mole of a pure substance
molar mass
solid
plasma
system
40. Numbers written in the form M ×10 number greater than or equal to 1 but less than 10 and n is a whole number
scientific notation n where the factor M is a scientific notation
Heisenberg Uncertainty Principle
conversion factor
transition metals
41. A form of energy that exhibits wavelike behavior as it travels through space (3.00x108 m/s)
Aufaub principle
Angular Momentum Quantum Number
Quantum Numbers
electromagnetic radiation
42. A 3D region around the nucleus that indicates the probable location of an electron.
heterogeneous
orbital
volume
photon
43. The emission of a continuous range of frequencies of electromagnetic radiation.
physical change
Quantum Theory
continuous spectrum
wavelength
44. An outer main energy level occupied - in most cases - by 8 electrons
period
product
noble gas configuration
average atomic mass
45. The closeness of a set of measurements of the same quantity made in the same way
chemical change
valence electrons
precision
Avogadro's number
46. Any process that results in the formation of an ion.
atom
nuclear force
ionization
hypothesis
47. Anything that has mass and takes up space
wavelength
isotopes
matter
nonmetal
48. The p-block elements together with the s-block elements.
main-group elements
scientific method
cation
atom
49. A negative ion.
atomic radius
atom
anion
Hund's rule
50. A short-range proton-neutron - proton-proton - or neutrorce that holds the nuclear particles together
nuclear force
Magnetic Quantum Number
Quantum Numbers
atom