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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. An element that has some characteristics of metals and some characteristics of nonmetals
actinide
metalloid
average atomic mass
homogeneous
2. Particle of electromagnetic radiation having zero mass and carrying a quantum of energy.
photon
metalloid
isotopes
electron affinity
3. The state of matter in which a substance has neither definite volume nor definite shape
gas
atomic radius
metal
Principle Quantum Number
4. Something that has magnitude - size - or amount
matter
quantity
family
law of conservation of mass
5. The amount of a substance that contains as many particles as there areatoms in exactly 12 g of carbon-12
mole
theory
atomic mass unit
lanthanide
6. The study of the composition - structure - and properties of matter and the changes it undergoes
chemistry
alkaline-earth metals
group
Hund's rule
7. The amount of space occupied by an object
extensive property
ion
volume
weight
8. State in which an atom has a higher potential energy than it has in it's ground state.
actinide
electronegativity
mass
excited state
9. A reaction in which one or more substances are converted into different substances
model
system
photoelectric effect
chemical reaction
10. The ratio of mass to volume or mass divided by volume
nuclear force
hertz
density
matter
11. A substance that is made from the atoms of two or more elements that are chemically bonded
compound
family
noble gas configuration
physical property
12. The emission of a continuous range of frequencies of electromagnetic radiation.
continuous spectrum
ionization energy
reactant
pure substance
13. A property that does not depend on the amount of matter present
Angular Momentum Quantum Number
inverse proportion
mass
intensive property
14. A logical approach to solving problems by observing and collecting data - formulating hypotheses - testing hypotheses - and formulating theories that are supported by data
Heisenberg Uncertainty Principle
physical change
scientific method
chemical change
15. The measurement system accepted worldwide
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16. Any digit in a measurement that is known with certainty plus one final digit - which is somewhat uncertain or is estimated
atom
ion
significant figure
plasma
17. A measure of the ability of an atom in a chemical compound to attract electrons from another atom in the compound.
electronegativity
hypothesis
group
periodic law
18. The energy required to remove one electron from a neutral atom of an element.
ionization energy
quantum
gas
photoelectric effect
19. Two quantities that give a constant value when one is divided by the other
direct proportion
ionization energy
mole
Heisenberg Uncertainty Principle
20. An element that is a good conductor of heat and electricity
scientific notation n where the factor M is a scientific notation
metal
gas
derived unit
21. The smallest unit of an element that maintains the properties of that element
atom
physical property
scientific notation n where the factor M is a scientific notation
alkali metals
22. Atoms of the same element that have different masses
isotopes
mass
chemical change
Heisenberg Uncertainty Principle
23. An explanation of how phenomena occur and how data or events are related
model
electromagnetic spectrum
ion
atomic number
24. A broad generalization that explains a body of facts or phenomena
theory
frequency
electron configuration
mixture
25. A pure substance made of only one kind of atom
ground state
law of multiple proportions
element
homogeneous
26. Mass is neither created nor destroyed duringordinary chemical or physical reactions
ion
law of conservation of mass
accuracy
solid
27. The state of matter in which the substance has a definite volume but an indefinite shape
liquid
chemistry
accuracy
SI (Le Système International d'Unités
28. Lowest energy state of an atom.
Pauli exclusion principle
photoelectric effect
intensive property
ground state
29. Describes mathematically the wave properties of electrons and other very small particles.
compound
product
Quantum Theory
orbital
30. The number of protons in the nucleus of each atom of an element
atom
electromagnetic radiation
metalloid
atomic number
31. A positive ion.
nonmetal
anion
cation
quantum
32. The weighted average of the atomic masses of thenaturally occurring isotopes of an element
percent error
average atomic mass
mole
direct proportion
33. The electrons available to be lost - gained - or shared in the formation of chemical compounds.
nuclear force
valence electrons
atomic mass unit
periodic table
34. The 14 elements with the atomic numbers 58-71.
lanthanide
Pauli exclusion principle
hypothesis
Spin Quantum Number
35. An electron occupies the lowest-energy orbital that can receive it
Aufaub principle
inverse proportion
Hund's rule
product
36. A physical change of a substance from one state to another
change of state
mixture
reactant
homogeneous
37. A characteristic that can be observed or measured without changing the identity of the substance
chemistry
mixture
isotopes
physical property
38. Anything that has mass and takes up space
ground state
matter
photoelectric effect
actinide
39. A short-range proton-neutron - proton-proton - or neutrorce that holds the nuclear particles together
theory
inverse proportion
nuclear force
Angular Momentum Quantum Number
40. A specific portion of matter in a given region of space that has been selected for study during an experiment or observation
density
family
system
atom
41. A form of energy that exhibits wavelike behavior as it travels through space (3.00x108 m/s)
valence electrons
frequency
electromagnetic radiation
alkali metals
42. Combination of all the forms of electromagnetic radiation.
gas
continuous spectrum
electromagnetic spectrum
electron configuration
43. The closeness of a set of measurements of the same quantity made in the same way
halogens
Aufaub principle
matter
precision
44. A change in a substance that does not involve a change in the identity of the substance
lanthanide
average atomic mass
change of state
physical change
45. An outer main energy level occupied - in most cases - by 8 electrons
matter
model
noble gas configuration
physical change
46. The total number of protons and neutrons in the nucleus of an isotope
atomic mass unit
direct proportion
mass number
nuclear force
47. A testable statement
reactant
main-group elements
hypothesis
chemistry
48. An element that is a poor conductor of heat and electricity
Quantum Theory
nonmetal
group
average atomic mass
49. A substance that is formed by a chemical change
volume
theory
change of state
product
50. A negative ion.
plasma
anion
percent error
lanthanide