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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 characteristic that can be observed or measured without changing the identity of the substance
gas
physical property
line-emission spectrum
alkaline-earth metals
2. Describes mathematically the wave properties of electrons and other very small particles.
period
physical property
Quantum Theory
ionization
3. A broad generalization that explains a body of facts or phenomena
ion
theory
Pauli exclusion principle
SI (Le Système International d'Unités
4. 1/2 the distance between the nuclei of identical atoms that are bonded together.
solid
atomic radius
metal
chemistry
5. A property that does not depend on the amount of matter present
main-group elements
intensive property
atomic radius
atom
6. Which suborbital. (Py - Px - Pz)
Principle Quantum Number
period
Magnetic Quantum Number
mixture
7. The total amount of energy level an atom has.
periodic table
ion
excited state
Principle Quantum Number
8. 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.
periodic table
ground state
metalloid
line-emission spectrum
9. A testable statement
law of multiple proportions
hypothesis
lanthanide
chemical property
10. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance
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11. State in which an atom has a higher potential energy than it has in it's ground state.
electron configuration
transition metals
excited state
ionization
12. Having a uniform composition throughout
electromagnetic radiation
law of multiple proportions
mass
homogeneous
13. Minimum quantity of energy that can be lost or gained by an atom.
wavelength
chemical reaction
electron affinity
quantum
14. An electron occupies the lowest-energy orbital that can receive it
law of conservation of mass
Aufaub principle
Quantum Numbers
cation
15. 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
transition metals
Principle Quantum Number
atomic radius
16. Not having a uniform composition throughout
nonmetal
heterogeneous
valence electrons
halogens
17. Distance between corresponding points on adjacent waves.
atomic radius
valence electrons
wavelength
Aufaub principle
18. 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
change of state
reactant
electron configuration
law of definite proportions
19. Mass is neither created nor destroyed duringordinary chemical or physical reactions
orbital
law of conservation of mass
alkaline-earth metals
period
20. The physical and chemical properties of the elements are periodic functions of their atomic numbers.
Hund's rule
atomic mass unit
plasma
periodic law
21. A unit of mass that is exactly 1/12 the mass of a carbon-12atom - or 1.660 540 × 10-27 kg
atomic mass unit
quantum
law of definite proportions
physical property
22. A short-range proton-neutron - proton-proton - or neutrorce that holds the nuclear particles together
metalloid
nuclear force
product
continuous spectrum
23. The elements of group 17 of the periodic table.
Avogadro's number
halogens
electron configuration
period
24. The state of matter in which a substance has neither definite volume nor definite shape
extensive property
gas
Principle Quantum Number
law of conservation of mass
25. The study of the composition - structure - and properties of matter and the changes it undergoes
chemistry
Principle Quantum Number
hypothesis
period
26. States that it is impossible to determine simultaneously both the position and velocity of an electron or any other particle.
group
Heisenberg Uncertainty Principle
continuous spectrum
Magnetic Quantum Number
27. The closeness of a set of measurements of the same quantity made in the same way
precision
Quantum Numbers
Hund's rule
nonmetal
28. Specify the properties of atomic orbitals and the properties of electrons in orbitals.
Quantum Numbers
accuracy
transition metals
significant figure
29. The electrons available to be lost - gained - or shared in the formation of chemical compounds.
density
orbital
valence electrons
liquid
30. The measurement system accepted worldwide
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31. Emission of electrons from a metal when light shines on a metal.
photoelectric effect
Hund's rule
Spin Quantum Number
Quantum Numbers
32. Anything that has mass and takes up space
SI (Le Système International d'Unités
hertz
electron affinity
matter
33. 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
noble gas configuration
halogens
law of multiple proportions
volume
34. The elements of group 1 of the periodic table.
atom
physical property
percent error
alkali metals
35. Something that has magnitude - size - or amount
lanthanide
quantity
ionization energy
Quantum Theory
36. An outer main energy level occupied - in most cases - by 8 electrons
noble gas configuration
law of multiple proportions
heterogeneous
Quantum Numbers
37. 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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38. A specific portion of matter in a given region of space that has been selected for study during an experiment or observation
Aufaub principle
matter
system
noble gas configuration
39. The smallest unit of an element that maintains the properties of that element
atom
Heisenberg Uncertainty Principle
electronegativity
electromagnetic radiation
40. Which way it spins. (up or down)
Spin Quantum Number
direct proportion
nuclide
chemical property
41. A substance that is formed by a chemical change
mass number
quantum
product
electromagnetic radiation
42. No two electrons in the same atom can have the same set of four quantum numbers
Pauli exclusion principle
electron affinity
law of conservation of mass
chemistry
43. The amount of space occupied by an object
frequency
precision
noble gas configuration
volume
44. A negative ion.
law of multiple proportions
extensive property
atomic radius
anion
45. The ratio of mass to volume or mass divided by volume
density
line-emission spectrum
percent error
pure substance
46. Any process that results in the formation of an ion.
mass number
ionization energy
intensive property
ionization
47. An element that has some characteristics of metals and some characteristics of nonmetals
frequency
average atomic mass
valence electrons
metalloid
48. The amount of a substance that contains as many particles as there areatoms in exactly 12 g of carbon-12
atomic number
Heisenberg Uncertainty Principle
actinide
mole
49. An explanation of how phenomena occur and how data or events are related
solid
model
derived unit
chemical change
50. The arrangement of electrons in an atom
atomic radius
product
electron configuration
quantity