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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 electrons available to be lost - gained - or shared in the formation of chemical compounds.
Heisenberg Uncertainty Principle
valence electrons
model
Quantum Numbers
2. The arrangement of electrons in an atom
electron configuration
system
photon
ion
3. The amount of space occupied by an object
periodic table
volume
extensive property
alkaline-earth metals
4. 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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5. The state of matter in which the substance has definite volume and definite shape
actinide
metal
inverse proportion
solid
6. Minimum quantity of energy that can be lost or gained by an atom.
quantum
solid
chemistry
accuracy
7. Combination of all the forms of electromagnetic radiation.
Hund's rule
family
molar mass
electromagnetic spectrum
8. The elements of group 2 of the periodic table.
alkaline-earth metals
system
Magnetic Quantum Number
group
9. The mass of one mole of a pure substance
percent error
molar mass
Avogadro's number
ionization energy
10. A property that does not depend on the amount of matter present
intensive property
Angular Momentum Quantum Number
matter
nonmetal
11. The ability of a substance to undergo a change that transforms it into a different substance
scientific notation n where the factor M is a scientific notation
quantum
Quantum Numbers
chemical property
12. A 3D region around the nucleus that indicates the probable location of an electron.
conversion factor
hypothesis
solid
orbital
13. A substance that is formed by a chemical change
element
line-emission spectrum
product
quantum
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
ionization
significant figure
direct proportion
pure substance
15. The p-block elements together with the s-block elements.
SI (Le Système International d'Unités
main-group elements
quantum
mass
16. The suborbitals of an atom. (S - P - D - F)
Angular Momentum Quantum Number
element
model
period
17. The physical and chemical properties of the elements are periodic functions of their atomic numbers.
metalloid
volume
periodic law
hypothesis
18. Not having a uniform composition throughout
heterogeneous
ground state
alkali metals
ion
19. One wave per second.
mass number
ionization energy
hertz
inverse proportion
20. Which way it spins. (up or down)
percent error
gas
Spin Quantum Number
family
21. A form of energy that exhibits wavelike behavior as it travels through space (3.00x108 m/s)
periodic table
anion
electromagnetic radiation
lanthanide
22. Mass is neither created nor destroyed duringordinary chemical or physical reactions
nonmetal
Quantum Numbers
scientific method
law of conservation of mass
23. The smallest unit of an element that maintains the properties of that element
atom
Hund's rule
precision
actinide
24. Any digit in a measurement that is known with certainty plus one final digit - which is somewhat uncertain or is estimated
hertz
direct proportion
group
significant figure
25. A change in a substance that does not involve a change in the identity of the substance
periodic table
physical change
chemical property
noble gas
26. The number of protons in the nucleus of each atom of an element
hypothesis
quantum
law of definite proportions
atomic number
27. A physical change of a substance from one state to another
solid
change of state
density
derived unit
28. An outer main energy level occupied - in most cases - by 8 electrons
atomic mass unit
noble gas configuration
photon
ionization
29. The weighted average of the atomic masses of thenaturally occurring isotopes of an element
average atomic mass
ground state
chemistry
law of multiple proportions
30. A unit that is a combination of SI base units
main-group elements
derived unit
atomic radius
volume
31. The d-block elements are metals with typical metallic properties.
hertz
transition metals
solid
mass number
32. The closeness of a set of measurements of the same quantity made in the same way
atomic number
precision
valence electrons
Aufaub principle
33. An atom or group of bonded atoms that has a positive or negative charge.
law of multiple proportions
Heisenberg Uncertainty Principle
theory
ion
34. A substance that reacts in a chemical change
mixture
period
reactant
atom
35. A measure of the gravitational pull on matter
Heisenberg Uncertainty Principle
weight
excited state
chemical change
36. A unit of mass that is exactly 1/12 the mass of a carbon-12atom - or 1.660 540 × 10-27 kg
electromagnetic radiation
halogens
atomic mass unit
system
37. Something that has magnitude - size - or amount
quantity
electromagnetic radiation
percent error
chemical
38. Which suborbital. (Py - Px - Pz)
wavelength
reactant
Magnetic Quantum Number
mass number
39. A value calculated by subtracting the experimental value from the accepted value - dividing the difference by the accepted value - and then multiplying by 100
element
percent error
transition metals
family
40. A short-range proton-neutron - proton-proton - or neutrorce that holds the nuclear particles together
frequency
SI (Le Système International d'Unités
chemistry
nuclear force
41. The elements of group 1 of the periodic table.
alkali metals
ground state
system
electron affinity
42. States that it is impossible to determine simultaneously both the position and velocity of an electron or any other particle.
alkali metals
chemical property
hypothesis
Heisenberg Uncertainty Principle
43. The measurement system accepted worldwide
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44. A testable statement
hypothesis
chemistry
Quantum Numbers
derived unit
45. A positive ion.
atomic number
halogens
solid
cation
46. A blend of two or more kinds of matter - each of which retains its own identity and properties
mixture
photoelectric effect
nuclide
quantum
47. The closeness of measurements to the correct or accepted value of the quantity measured
accuracy
main-group elements
direct proportion
Quantum Numbers
48. Atoms of the same element that have different masses
Principle Quantum Number
family
isotopes
ionization
49. Two quantities that give a constant value when one is divided by the other
intensive property
direct proportion
model
nuclear force
50. The smallest unit of an element that maintains the properties of that element
alkali metals
electron affinity
atom
chemical property