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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 smallest unit of an element that maintains the properties of that element
nuclear force
precision
atom
matter
2. The weighted average of the atomic masses of thenaturally occurring isotopes of an element
extensive property
valence electrons
precision
average atomic mass
3. The energy change that occurs when an electron is acquired by a neutral atom.
electron affinity
ground state
nonmetal
conversion factor
4. A reaction in which one or more substances are converted into different substances
chemical reaction
atomic mass unit
reactant
model
5. A value calculated by subtracting the experimental value from the accepted value - dividing the difference by the accepted value - and then multiplying by 100
percent error
inverse proportion
solid
Quantum Theory
6. The closeness of a set of measurements of the same quantity made in the same way
orbital
average atomic mass
conversion factor
precision
7. A form of energy that exhibits wavelike behavior as it travels through space (3.00x108 m/s)
electromagnetic radiation
pure substance
weight
system
8. A horizontal row of elements in the periodic table
period
metal
solid
hypothesis
9. 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
electron configuration
pure substance
Hund's rule
law of multiple proportions
10. The elements of group 1 of the periodic table.
plasma
atomic number
ion
alkali metals
11. A substance that reacts in a chemical change
Angular Momentum Quantum Number
reactant
liquid
electromagnetic spectrum
12. A property that does not depend on the amount of matter present
nuclear force
plasma
ion
intensive property
13. An atom or group of bonded atoms that has a positive or negative charge.
model
Heisenberg Uncertainty Principle
ion
Hund's rule
14. Two quantities that have a constant mathematical product
weight
mass number
reactant
inverse proportion
15. The total number of protons and neutrons in the nucleus of an isotope
precision
mass number
nonmetal
Spin Quantum Number
16. The d-block elements are metals with typical metallic properties.
transition metals
law of multiple proportions
direct proportion
electromagnetic spectrum
17. Specify the properties of atomic orbitals and the properties of electrons in orbitals.
density
periodic table
Quantum Numbers
wavelength
18. Having a uniform composition throughout
homogeneous
compound
family
hypothesis
19. The measurement system accepted worldwide
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20. The state of matter in which the substance has a definite volume but an indefinite shape
actinide
main-group elements
liquid
accuracy
21. A specific portion of matter in a given region of space that has been selected for study during an experiment or observation
compound
system
conversion factor
electron affinity
22. 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
law of definite proportions
atomic radius
electromagnetic spectrum
Quantum Theory
23. A physical change of a substance from one state to another
homogeneous
noble gas
change of state
gas
24. States that it is impossible to determine simultaneously both the position and velocity of an electron or any other particle.
Heisenberg Uncertainty Principle
Pauli exclusion principle
noble gas
Quantum Numbers
25. Any process that results in the formation of an ion.
Heisenberg Uncertainty Principle
ionization
frequency
nuclide
26. A property that depends on the amount of matter that is present
atom
extensive property
reactant
noble gas configuration
27. The electrons available to be lost - gained - or shared in the formation of chemical compounds.
matter
nuclear force
Aufaub principle
valence electrons
28. The p-block elements together with the s-block elements.
extensive property
main-group elements
chemical reaction
homogeneous
29. The suborbitals of an atom. (S - P - D - F)
alkaline-earth metals
Angular Momentum Quantum Number
heterogeneous
chemistry
30. Two quantities that give a constant value when one is divided by the other
reactant
direct proportion
period
ion
31. Not having a uniform composition throughout
direct proportion
photoelectric effect
heterogeneous
Principle Quantum Number
32. Something that has magnitude - size - or amount
quantity
Quantum Theory
matter
molar mass
33. Any substance that has a definite composition
valence electrons
chemical
cation
volume
34. A logical approach to solving problems by observing and collecting data - formulating hypotheses - testing hypotheses - and formulating theories that are supported by data
electronegativity
scientific method
atomic radius
quantum
35. State in which an atom has a higher potential energy than it has in it's ground state.
excited state
change of state
element
weight
36. The state of matter in which the substance has definite volume and definite shape
solid
family
group
pure substance
37. A testable statement
hypothesis
group
ground state
continuous spectrum
38. Describes mathematically the wave properties of electrons and other very small particles.
mass
reactant
isotopes
Quantum Theory
39. A broad generalization that explains a body of facts or phenomena
theory
hertz
precision
atomic mass unit
40. Minimum quantity of energy that can be lost or gained by an atom.
quantum
isotopes
Spin Quantum Number
molar mass
41. Mass is neither created nor destroyed duringordinary chemical or physical reactions
change of state
law of conservation of mass
mass number
heterogeneous
42. The physical and chemical properties of the elements are periodic functions of their atomic numbers.
family
periodic law
Spin Quantum Number
line-emission spectrum
43. A characteristic that can be observed or measured without changing the identity of the substance
plasma
liquid
physical property
continuous spectrum
44. A 3D region around the nucleus that indicates the probable location of an electron.
theory
orbital
plasma
quantity
45. A short-range proton-neutron - proton-proton - or neutrorce that holds the nuclear particles together
nuclear force
cation
SI (Le Système International d'Unités
solid
46. Anything that has mass and takes up space
cation
chemical change
theory
matter
47. The general term for any isotope of any element
nuclide
cation
atomic mass unit
nuclear force
48. The ability of a substance to undergo a change that transforms it into a different substance
chemical property
electron affinity
atomic mass unit
chemical reaction
49. The state of matter in which a substance has neither definite volume nor definite shape
gas
alkaline-earth metals
isotopes
actinide
50. Distance between corresponding points on adjacent waves.
significant figure
compound
wavelength
average atomic mass