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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 ratio of mass to volume or mass divided by volume
mole
density
line-emission spectrum
hypothesis
2. 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
pure substance
weight
line-emission spectrum
atom
3. Mass is neither created nor destroyed duringordinary chemical or physical reactions
Magnetic Quantum Number
quantity
law of conservation of mass
solid
4. The weighted average of the atomic masses of thenaturally occurring isotopes of an element
average atomic mass
Hund's rule
product
gas
5. The state of matter in which the substance has definite volume and definite shape
law of multiple proportions
hertz
solid
main-group elements
6. The elements of group 1 of the periodic table.
actinide
alkali metals
continuous spectrum
intensive property
7. No two electrons in the same atom can have the same set of four quantum numbers
frequency
volume
atomic number
Pauli exclusion principle
8. An explanation of how phenomena occur and how data or events are related
model
noble gas configuration
main-group elements
law of conservation of mass
9. The smallest unit of an element that maintains the properties of that element
atom
Avogadro's number
direct proportion
liquid
10. The study of the composition - structure - and properties of matter and the changes it undergoes
chemistry
nonmetal
plasma
scientific notation n where the factor M is a scientific notation
11. A specific portion of matter in a given region of space that has been selected for study during an experiment or observation
system
accuracy
hertz
law of multiple proportions
12. Lowest energy state of an atom.
law of multiple proportions
reactant
ground state
element
13. 1/2 the distance between the nuclei of identical atoms that are bonded together.
product
Spin Quantum Number
atomic radius
density
14. The electrons available to be lost - gained - or shared in the formation of chemical compounds.
Aufaub principle
volume
valence electrons
electronegativity
15. The 14 elements with the atomic numbers 90-103.
excited state
solid
noble gas
actinide
16. 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
Quantum Numbers
law of definite proportions
ground state
ionization energy
17. Minimum quantity of energy that can be lost or gained by an atom.
quantity
quantum
Quantum Theory
nuclear force
18. A property that does not depend on the amount of matter present
chemical reaction
percent error
intensive property
element
19. The emission of a continuous range of frequencies of electromagnetic radiation.
Quantum Theory
hypothesis
continuous spectrum
mass
20. A testable statement
matter
element
Aufaub principle
hypothesis
21. The 14 elements with the atomic numbers 58-71.
nuclear force
lanthanide
Principle Quantum Number
average atomic mass
22. States that it is impossible to determine simultaneously both the position and velocity of an electron or any other particle.
nuclide
heterogeneous
Heisenberg Uncertainty Principle
electron affinity
23. A characteristic that can be observed or measured without changing the identity of the substance
model
atom
intensive property
physical property
24. The energy change that occurs when an electron is acquired by a neutral atom.
model
liquid
electron affinity
Angular Momentum Quantum Number
25. The measurement system accepted worldwide
26. Which suborbital. (Py - Px - Pz)
alkali metals
main-group elements
derived unit
Magnetic Quantum Number
27. A form of energy that exhibits wavelike behavior as it travels through space (3.00x108 m/s)
orbital
isotopes
noble gas configuration
electromagnetic radiation
28. Particle of electromagnetic radiation having zero mass and carrying a quantum of energy.
density
photon
atomic mass unit
excited state
29. The d-block elements are metals with typical metallic properties.
transition metals
chemistry
cation
theory
30. Specify the properties of atomic orbitals and the properties of electrons in orbitals.
density
volume
ionization energy
Quantum Numbers
31. Two quantities that have a constant mathematical product
inverse proportion
mole
theory
significant figure
32. The elements of group 17 of the periodic table.
halogens
chemical property
Hund's rule
accuracy
33. The total amount of energy level an atom has.
Principle Quantum Number
electron affinity
Quantum Numbers
Aufaub principle
34. A horizontal row of elements in the periodic table
precision
mass number
weight
period
35. Having a uniform composition throughout
scientific notation n where the factor M is a scientific notation
homogeneous
change of state
atomic number
36. The closeness of measurements to the correct or accepted value of the quantity measured
Avogadro's number
direct proportion
accuracy
alkali metals
37. A value calculated by subtracting the experimental value from the accepted value - dividing the difference by the accepted value - and then multiplying by 100
inverse proportion
percent error
plasma
mass number
38. A pure substance made of only one kind of atom
metalloid
element
intensive property
atomic mass unit
39. 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.
40. A unit of mass that is exactly 1/12 the mass of a carbon-12atom - or 1.660 540 × 10-27 kg
alkaline-earth metals
electromagnetic spectrum
atomic mass unit
Spin Quantum Number
41. A measure of the gravitational pull on matter
mole
inverse proportion
liquid
weight
42. Distance between corresponding points on adjacent waves.
plasma
wavelength
Pauli exclusion principle
SI (Le Système International d'Unités
43. The number of protons in the nucleus of each atom of an element
intensive property
ground state
atomic number
ionization
44. A change in a substance that does not involve a change in the identity of the substance
physical change
chemistry
electronegativity
plasma
45. Describes mathematically the wave properties of electrons and other very small particles.
product
Quantum Theory
SI (Le Système International d'Unités
lanthanide
46. A positive ion.
halogens
cation
mass number
lanthanide
47. A measure of the ability of an atom in a chemical compound to attract electrons from another atom in the compound.
conversion factor
electronegativity
solid
extensive property
48. Any substance that has a definite composition
atomic radius
direct proportion
mass
chemical
49. A unit that is a combination of SI base units
inverse proportion
derived unit
noble gas configuration
solid
50. A blend of two or more kinds of matter - each of which retains its own identity and properties
gas
continuous spectrum
quantum
mixture