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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 unit of mass that is exactly 1/12 the mass of a carbon-12atom - or 1.660 540 × 10-27 kg
continuous spectrum
wavelength
atomic mass unit
Hund's rule
2. The smallest unit of an element that maintains the properties of that element
electronegativity
noble gas configuration
atom
quantity
3. A measure of the gravitational pull on matter
line-emission spectrum
weight
nuclear force
molar mass
4. The amount of space occupied by an object
atomic number
derived unit
noble gas configuration
volume
5. A negative ion.
pure substance
anion
frequency
element
6. The mass of one mole of a pure substance
group
Heisenberg Uncertainty Principle
molar mass
alkali metals
7. An element that is a poor conductor of heat and electricity
nonmetal
alkali metals
gas
Principle Quantum Number
8. The state of matter in which the substance has a definite volume but an indefinite shape
chemical change
density
law of definite proportions
liquid
9. A substance that reacts in a chemical change
continuous spectrum
conversion factor
reactant
nuclear force
10. The elements of group 17 of the periodic table.
halogens
continuous spectrum
ion
periodic table
11. A value calculated by subtracting the experimental value from the accepted value - dividing the difference by the accepted value - and then multiplying by 100
chemical
molar mass
percent error
actinide
12. State in which an atom has a higher potential energy than it has in it's ground state.
period
theory
excited state
atom
13. A property that depends on the amount of matter that is present
electronegativity
pure substance
extensive property
Aufaub principle
14. 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
photon
electromagnetic spectrum
law of multiple proportions
atomic mass unit
15. Combination of all the forms of electromagnetic radiation.
group
electromagnetic spectrum
hypothesis
alkaline-earth metals
16. An element that is a good conductor of heat and electricity
electron affinity
photoelectric effect
Angular Momentum Quantum Number
metal
17. 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.
percent error
pure substance
Quantum Numbers
periodic table
18. A short-range proton-neutron - proton-proton - or neutrorce that holds the nuclear particles together
electronegativity
nuclear force
halogens
metalloid
19. Distance between corresponding points on adjacent waves.
inverse proportion
transition metals
wavelength
nonmetal
20. Narrow beam of the emitted light was shined through a prism - it was separated into four specific colors of the visible spectrum.
line-emission spectrum
SI (Le Système International d'Unités
hypothesis
change of state
21. A physical change of a substance from one state to another
alkaline-earth metals
hypothesis
physical change
change of state
22. A testable statement
volume
direct proportion
hypothesis
law of multiple proportions
23. A positive ion.
excited state
atomic radius
accuracy
cation
24. The study of the composition - structure - and properties of matter and the changes it undergoes
chemistry
density
mass number
actinide
25. A specific portion of matter in a given region of space that has been selected for study during an experiment or observation
anion
system
derived unit
accuracy
26. A form of energy that exhibits wavelike behavior as it travels through space (3.00x108 m/s)
system
electromagnetic radiation
transition metals
element
27. Any substance that has a definite composition
chemical
molar mass
chemistry
electron affinity
28. A horizontal row of elements in the periodic table
wavelength
period
Spin Quantum Number
alkali metals
29. A substance that is formed by a chemical change
valence electrons
mole
law of definite proportions
product
30. Any process that results in the formation of an ion.
metal
element
Heisenberg Uncertainty Principle
ionization
31. Anything that has mass and takes up space
gas
periodic table
matter
atomic radius
32. The amount of a substance that contains as many particles as there areatoms in exactly 12 g of carbon-12
photon
valence electrons
atomic mass unit
mole
33. The measurement system accepted worldwide
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34. The energy change that occurs when an electron is acquired by a neutral atom.
electron affinity
frequency
wavelength
Magnetic Quantum Number
35. Particle of electromagnetic radiation having zero mass and carrying a quantum of energy.
extensive property
photon
halogens
accuracy
36. One wave per second.
electromagnetic spectrum
hertz
quantity
period
37. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance
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38. Which way it spins. (up or down)
Spin Quantum Number
actinide
period
law of definite proportions
39. The 14 elements with the atomic numbers 90-103.
intensive property
chemistry
actinide
electron affinity
40. Emission of electrons from a metal when light shines on a metal.
atom
photoelectric effect
Aufaub principle
accuracy
41. Number of waves that pass a given point in a specific time - usually one second.
liquid
Pauli exclusion principle
frequency
group
42. The 14 elements with the atomic numbers 58-71.
lanthanide
transition metals
ion
accuracy
43. Describes mathematically the wave properties of electrons and other very small particles.
Quantum Theory
weight
Magnetic Quantum Number
transition metals
44. A unit that is a combination of SI base units
ion
Avogadro's number
derived unit
Pauli exclusion principle
45. The energy required to remove one electron from a neutral atom of an element.
precision
ionization energy
atom
atomic mass unit
46. A blend of two or more kinds of matter - each of which retains its own identity and properties
mixture
atomic radius
Spin Quantum Number
scientific notation n where the factor M is a scientific notation
47. Any digit in a measurement that is known with certainty plus one final digit - which is somewhat uncertain or is estimated
significant figure
atom
inverse proportion
mixture
48. A measure of the ability of an atom in a chemical compound to attract electrons from another atom in the compound.
electronegativity
excited state
metal
average atomic mass
49. A high-temperature physical state of matter in which atoms lose their electrons
chemistry
electronegativity
Quantum Theory
plasma
50. 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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