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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 14 elements with the atomic numbers 58-71.
lanthanide
actinide
Quantum Numbers
cation
2. The measurement system accepted worldwide
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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. The amount of a substance that contains as many particles as there areatoms in exactly 12 g of carbon-12
significant figure
Hund's rule
mole
intensive property
5. A physical change of a substance from one state to another
Pauli exclusion principle
mole
change of state
physical property
6. A broad generalization that explains a body of facts or phenomena
theory
inverse proportion
volume
electromagnetic spectrum
7. The mass of one mole of a pure substance
law of multiple proportions
molar mass
cation
hertz
8. The energy change that occurs when an electron is acquired by a neutral atom.
mass number
SI (Le Système International d'Unités
electron affinity
metalloid
9. The emission of a continuous range of frequencies of electromagnetic radiation.
periodic law
Spin Quantum Number
continuous spectrum
physical change
10. A measure of the gravitational pull on matter
weight
reactant
Quantum Theory
alkali metals
11. A measure of the amount of matter
Pauli exclusion principle
hypothesis
ionization
mass
12. A unit that is a combination of SI base units
scientific notation n where the factor M is a scientific notation
direct proportion
derived unit
accuracy
13. The general term for any isotope of any element
mass
electron affinity
nuclide
direct proportion
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
scientific method
pure substance
Quantum Numbers
Heisenberg Uncertainty Principle
15. No two electrons in the same atom can have the same set of four quantum numbers
extensive property
periodic table
percent error
Pauli exclusion principle
16. The number of protons in the nucleus of each atom of an element
atomic number
Magnetic Quantum Number
electronegativity
matter
17. A reaction in which one or more substances are converted into different substances
isotopes
orbital
chemical
chemical reaction
18. A form of energy that exhibits wavelike behavior as it travels through space (3.00x108 m/s)
theory
electromagnetic radiation
orbital
density
19. An explanation of how phenomena occur and how data or events are related
model
alkaline-earth metals
Spin Quantum Number
hypothesis
20. An element that is a poor conductor of heat and electricity
actinide
nonmetal
halogens
Hund's rule
21. Atoms of the same element that have different masses
matter
isotopes
scientific method
Quantum Theory
22. A negative ion.
anion
model
law of conservation of mass
excited state
23. 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
law of conservation of mass
nuclide
24. The closeness of a set of measurements of the same quantity made in the same way
precision
percent error
direct proportion
continuous spectrum
25. Mass is neither created nor destroyed duringordinary chemical or physical reactions
isotopes
law of conservation of mass
significant figure
alkaline-earth metals
26. The smallest unit of an element that maintains the properties of that element
atom
metalloid
law of multiple proportions
mass
27. A characteristic that can be observed or measured without changing the identity of the substance
physical property
frequency
atom
valence electrons
28. The p-block elements together with the s-block elements.
ionization
system
Quantum Theory
main-group elements
29. Narrow beam of the emitted light was shined through a prism - it was separated into four specific colors of the visible spectrum.
mass
periodic table
pure substance
line-emission spectrum
30. Two quantities that give a constant value when one is divided by the other
noble gas
electromagnetic spectrum
mass number
direct proportion
31. A vertical column of the periodic table
metalloid
chemical property
family
halogens
32. Not having a uniform composition throughout
nuclear force
mass
heterogeneous
pure substance
33. Any digit in a measurement that is known with certainty plus one final digit - which is somewhat uncertain or is estimated
significant figure
Avogadro's number
reactant
electronegativity
34. An element that has some characteristics of metals and some characteristics of nonmetals
extensive property
metalloid
electromagnetic spectrum
electron affinity
35. A change in which one or more substances are converted into different substances
family
Quantum Theory
chemical change
significant figure
36. Something that has magnitude - size - or amount
quantity
electronegativity
hypothesis
atom
37. The state of matter in which the substance has a definite volume but an indefinite shape
theory
photoelectric effect
liquid
Heisenberg Uncertainty Principle
38. A horizontal row of elements in the periodic table
anion
metal
precision
period
39. The d-block elements are metals with typical metallic properties.
inverse proportion
electromagnetic spectrum
transition metals
atomic number
40. Combination of all the forms of electromagnetic radiation.
electromagnetic spectrum
periodic law
chemistry
scientific notation n where the factor M is a scientific notation
41. The closeness of measurements to the correct or accepted value of the quantity measured
electron affinity
change of state
accuracy
anion
42. The arrangement of electrons in an atom
wavelength
nuclide
molar mass
electron configuration
43. Lowest energy state of an atom.
orbital
ground state
wavelength
law of multiple proportions
44. The amount of space occupied by an object
lanthanide
mass number
volume
accuracy
45. An outer main energy level occupied - in most cases - by 8 electrons
average atomic mass
alkali metals
noble gas configuration
atomic radius
46. Specify the properties of atomic orbitals and the properties of electrons in orbitals.
nonmetal
Quantum Numbers
electronegativity
noble gas configuration
47. Anything that has mass and takes up space
matter
alkaline-earth metals
reactant
atom
48. The ratio of mass to volume or mass divided by volume
electron configuration
significant figure
ionization energy
density
49. The weighted average of the atomic masses of thenaturally occurring isotopes of an element
average atomic mass
product
orbital
halogens
50. 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
group
significant figure
law of definite proportions
mass number