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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. Describes mathematically the wave properties of electrons and other very small particles.
Pauli exclusion principle
Quantum Theory
chemical
weight
2. A positive ion.
electronegativity
law of conservation of mass
cation
volume
3. A ratio derived from the equality between two different units that can be used to convert from one unit to the other
wavelength
conversion factor
inverse proportion
matter
4. A value calculated by subtracting the experimental value from the accepted value - dividing the difference by the accepted value - and then multiplying by 100
hypothesis
hertz
percent error
ground state
5. Any process that results in the formation of an ion.
ionization
alkali metals
anion
Spin Quantum Number
6. An explanation of how phenomena occur and how data or events are related
quantity
model
law of definite proportions
accuracy
7. The arrangement of electrons in an atom
line-emission spectrum
precision
electron configuration
noble gas configuration
8. The smallest unit of an element that maintains the properties of that element
continuous spectrum
heterogeneous
atom
alkaline-earth metals
9. Two quantities that have a constant mathematical product
gas
anion
inverse proportion
continuous spectrum
10. The number of protons in the nucleus of each atom of an element
nuclide
lanthanide
atomic number
Pauli exclusion principle
11. The general term for any isotope of any element
accuracy
average atomic mass
electronegativity
nuclide
12. The elements of group 1 of the periodic table.
law of definite proportions
element
alkali metals
noble gas
13. A property that depends on the amount of matter that is present
ground state
physical property
atom
extensive property
14. A high-temperature physical state of matter in which atoms lose their electrons
plasma
electron configuration
wavelength
line-emission spectrum
15. The total number of protons and neutrons in the nucleus of an isotope
quantum
product
noble gas configuration
mass number
16. A unit that is a combination of SI base units
ionization
product
model
derived unit
17. A change in which one or more substances are converted into different substances
chemical change
alkali metals
actinide
extensive property
18. Mass is neither created nor destroyed duringordinary chemical or physical reactions
law of conservation of mass
Magnetic Quantum Number
conversion factor
change of state
19. Any substance that has a definite composition
periodic table
molar mass
photoelectric effect
chemical
20. A logical approach to solving problems by observing and collecting data - formulating hypotheses - testing hypotheses - and formulating theories that are supported by data
scientific method
electron affinity
transition metals
Avogadro's number
21. The Group 18 elements (helium - neon - argon - krypton - xenon - and radon)
chemical property
noble gas
group
Avogadro's number
22. The amount of a substance that contains as many particles as there areatoms in exactly 12 g of carbon-12
isotopes
chemical
physical change
mole
23. The ability of a substance to undergo a change that transforms it into a different substance
density
molar mass
chemical property
nuclide
24. The emission of a continuous range of frequencies of electromagnetic radiation.
Principle Quantum Number
law of definite proportions
metalloid
continuous spectrum
25. Not having a uniform composition throughout
compound
heterogeneous
liquid
atomic mass unit
26. An atom or group of bonded atoms that has a positive or negative charge.
ion
noble gas
mole
chemical
27. The state of matter in which the substance has a definite volume but an indefinite shape
percent error
liquid
significant figure
chemical
28. Two quantities that give a constant value when one is divided by the other
Heisenberg Uncertainty Principle
chemical reaction
direct proportion
law of multiple proportions
29. An element that is a poor conductor of heat and electricity
nonmetal
Angular Momentum Quantum Number
atomic mass unit
change of state
30. A unit of mass that is exactly 1/12 the mass of a carbon-12atom - or 1.660 540 × 10-27 kg
ground state
change of state
electromagnetic radiation
atomic mass unit
31. No two electrons in the same atom can have the same set of four quantum numbers
period
Pauli exclusion principle
family
liquid
32. Numbers written in the form M ×10 number greater than or equal to 1 but less than 10 and n is a whole number
continuous spectrum
Avogadro's number
element
scientific notation n where the factor M is a scientific notation
33. 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.
Quantum Numbers
Pauli exclusion principle
periodic table
isotopes
34. An electron occupies the lowest-energy orbital that can receive it
group
atom
alkali metals
Aufaub principle
35. The amount of space occupied by an object
electron configuration
alkaline-earth metals
volume
gas
36. The p-block elements together with the s-block elements.
law of conservation of mass
cation
main-group elements
nuclide
37. 1/2 the distance between the nuclei of identical atoms that are bonded together.
scientific notation n where the factor M is a scientific notation
compound
atomic radius
continuous spectrum
38. A horizontal row of elements in the periodic table
wavelength
accuracy
period
volume
39. A short-range proton-neutron - proton-proton - or neutrorce that holds the nuclear particles together
nuclear force
homogeneous
Principle Quantum Number
chemical reaction
40. Lowest energy state of an atom.
ground state
model
atomic radius
SI (Le Système International d'Unités
41. 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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42. The elements of group 2 of the periodic table.
Magnetic Quantum Number
heterogeneous
alkaline-earth metals
conversion factor
43. Anything that has mass and takes up space
chemistry
cation
matter
model
44. Atoms of the same element that have different masses
compound
hypothesis
direct proportion
isotopes
45. A measure of the amount of matter
atom
atomic radius
mass
hertz
46. Minimum quantity of energy that can be lost or gained by an atom.
frequency
chemical
quantum
noble gas configuration
47. 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
mixture
transition metals
Pauli exclusion principle
law of definite proportions
48. A form of energy that exhibits wavelike behavior as it travels through space (3.00x108 m/s)
element
nonmetal
electromagnetic radiation
reactant
49. Any digit in a measurement that is known with certainty plus one final digit - which is somewhat uncertain or is estimated
matter
chemistry
nonmetal
significant figure
50. The ratio of mass to volume or mass divided by volume
isotopes
reactant
theory
density