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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. Something that has magnitude - size - or amount
wavelength
alkaline-earth metals
quantity
atomic number
2. Emission of electrons from a metal when light shines on a metal.
photoelectric effect
Quantum Theory
Quantum Numbers
percent error
3. The 14 elements with the atomic numbers 58-71.
lanthanide
SI (Le Système International d'Unités
alkali metals
heterogeneous
4. A broad generalization that explains a body of facts or phenomena
alkaline-earth metals
atomic radius
theory
model
5. Minimum quantity of energy that can be lost or gained by an atom.
anion
quantum
ground state
Spin Quantum Number
6. Lowest energy state of an atom.
chemical reaction
ground state
gas
law of definite proportions
7. The closeness of measurements to the correct or accepted value of the quantity measured
photoelectric effect
compound
atom
accuracy
8. A vertical column of the periodic table
model
pure substance
group
periodic law
9. The total number of protons and neutrons in the nucleus of an isotope
family
mass number
frequency
nuclide
10. A characteristic that can be observed or measured without changing the identity of the substance
quantity
Aufaub principle
extensive property
physical property
11. A unit that is a combination of SI base units
derived unit
orbital
continuous spectrum
chemistry
12. A pure substance made of only one kind of atom
lanthanide
solid
compound
element
13. The ability of a substance to undergo a change that transforms it into a different substance
lanthanide
percent error
isotopes
chemical property
14. The ratio of mass to volume or mass divided by volume
average atomic mass
density
chemical property
percent error
15. The elements of group 2 of the periodic table.
main-group elements
mass
noble gas
alkaline-earth metals
16. Having a uniform composition throughout
main-group elements
nuclear force
actinide
homogeneous
17. The energy required to remove one electron from a neutral atom of an element.
anion
mixture
main-group elements
ionization energy
18. A vertical column of the periodic table
family
hypothesis
halogens
mass
19. An explanation of how phenomena occur and how data or events are related
orbital
Pauli exclusion principle
mole
model
20. A specific portion of matter in a given region of space that has been selected for study during an experiment or observation
inverse proportion
system
model
percent error
21. The smallest unit of an element that maintains the properties of that element
conversion factor
electron configuration
Principle Quantum Number
atom
22. A 3D region around the nucleus that indicates the probable location of an electron.
metalloid
orbital
hypothesis
chemical property
23. 1/2 the distance between the nuclei of identical atoms that are bonded together.
atomic radius
frequency
density
theory
24. The measurement system accepted worldwide
25. The number of protons in the nucleus of each atom of an element
nuclear force
Quantum Theory
hypothesis
atomic number
26. The electrons available to be lost - gained - or shared in the formation of chemical compounds.
chemical reaction
transition metals
valence electrons
alkaline-earth metals
27. Any substance that has a definite composition
Aufaub principle
average atomic mass
chemical
physical property
28. Describes mathematically the wave properties of electrons and other very small particles.
Quantum Theory
SI (Le Système International d'Unités
theory
product
29. Specify the properties of atomic orbitals and the properties of electrons in orbitals.
Pauli exclusion principle
Quantum Numbers
compound
reactant
30. Two quantities that give a constant value when one is divided by the other
scientific method
system
frequency
direct proportion
31. A value calculated by subtracting the experimental value from the accepted value - dividing the difference by the accepted value - and then multiplying by 100
Quantum Numbers
main-group elements
reactant
percent error
32. Particle of electromagnetic radiation having zero mass and carrying a quantum of energy.
photon
electromagnetic spectrum
density
anion
33. The amount of a substance that contains as many particles as there areatoms in exactly 12 g of carbon-12
mole
periodic table
Hund's rule
continuous spectrum
34. A positive ion.
percent error
cation
electronegativity
Quantum Numbers
35. The state of matter in which the substance has a definite volume but an indefinite shape
law of multiple proportions
liquid
quantum
atomic mass unit
36. An element that is a poor conductor of heat and electricity
alkaline-earth metals
Quantum Theory
nonmetal
periodic law
37. The state of matter in which a substance has neither definite volume nor definite shape
ionization energy
gas
valence electrons
Principle Quantum Number
38. The mass of one mole of a pure substance
plasma
ground state
Quantum Numbers
molar mass
39. A blend of two or more kinds of matter - each of which retains its own identity and properties
mixture
Principle Quantum Number
model
halogens
40. States that it is impossible to determine simultaneously both the position and velocity of an electron or any other particle.
intensive property
atomic mass unit
Heisenberg Uncertainty Principle
line-emission spectrum
41. A property that does not depend on the amount of matter present
Quantum Theory
intensive property
metalloid
metal
42. Numbers written in the form M ×10 number greater than or equal to 1 but less than 10 and n is a whole number
density
scientific notation n where the factor M is a scientific notation
chemical change
accuracy
43. Which way it spins. (up or down)
Spin Quantum Number
quantity
compound
change of state
44. A substance that is made from the atoms of two or more elements that are chemically bonded
extensive property
periodic table
compound
pure substance
45. The arrangement of electrons in an atom
periodic table
atomic number
electron configuration
excited state
46. The weighted average of the atomic masses of thenaturally occurring isotopes of an element
theory
electronegativity
mass
average atomic mass
47. An element that has some characteristics of metals and some characteristics of nonmetals
group
metalloid
atom
direct proportion
48. The d-block elements are metals with typical metallic properties.
photon
transition metals
pure substance
electromagnetic radiation
49. A physical change of a substance from one state to another
change of state
physical property
noble gas configuration
mole
50. A measure of the gravitational pull on matter
element
weight
periodic law
atom