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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. Which way it spins. (up or down)
Spin Quantum Number
ground state
system
density
2. A unit of mass that is exactly 1/12 the mass of a carbon-12atom - or 1.660 540 × 10-27 kg
main-group elements
compound
atomic mass unit
valence electrons
3. Lowest energy state of an atom.
ground state
electromagnetic spectrum
law of multiple proportions
gas
4. A pure substance made of only one kind of atom
Spin Quantum Number
pure substance
element
theory
5. Distance between corresponding points on adjacent waves.
period
reactant
Angular Momentum Quantum Number
wavelength
6. A measure of the ability of an atom in a chemical compound to attract electrons from another atom in the compound.
ground state
electronegativity
law of multiple proportions
Aufaub principle
7. One wave per second.
isotopes
hertz
alkaline-earth metals
pure substance
8. Particle of electromagnetic radiation having zero mass and carrying a quantum of energy.
metalloid
photon
law of conservation of mass
line-emission spectrum
9. An electron occupies the lowest-energy orbital that can receive it
Pauli exclusion principle
Aufaub principle
nonmetal
orbital
10. An element that is a poor conductor of heat and electricity
hypothesis
Angular Momentum Quantum Number
line-emission spectrum
nonmetal
11. The study of the composition - structure - and properties of matter and the changes it undergoes
theory
matter
chemistry
average atomic mass
12. The measurement system accepted worldwide
13. A physical change of a substance from one state to another
change of state
homogeneous
extensive property
conversion factor
14. Numbers written in the form M ×10 number greater than or equal to 1 but less than 10 and n is a whole number
valence electrons
homogeneous
scientific notation n where the factor M is a scientific notation
wavelength
15. The amount of space occupied by an object
alkaline-earth metals
volume
scientific notation n where the factor M is a scientific notation
atomic number
16. The elements of group 1 of the periodic table.
ionization
heterogeneous
alkali metals
Angular Momentum Quantum Number
17. The state of matter in which a substance has neither definite volume nor definite shape
electron configuration
electron affinity
Heisenberg Uncertainty Principle
gas
18. A broad generalization that explains a body of facts or phenomena
Spin Quantum Number
ion
theory
photon
19. Any process that results in the formation of an ion.
model
metalloid
ionization
periodic law
20. The total number of protons and neutrons in the nucleus of an isotope
mass number
hertz
nonmetal
family
21. Any digit in a measurement that is known with certainty plus one final digit - which is somewhat uncertain or is estimated
significant figure
excited state
law of definite proportions
Aufaub principle
22. A measure of the gravitational pull on matter
element
weight
photoelectric effect
density
23. The electrons available to be lost - gained - or shared in the formation of chemical compounds.
law of definite proportions
scientific method
scientific notation n where the factor M is a scientific notation
valence electrons
24. The arrangement of electrons in an atom
family
electron configuration
metalloid
chemical property
25. A ratio derived from the equality between two different units that can be used to convert from one unit to the other
quantum
conversion factor
Quantum Theory
Principle Quantum Number
26. A change in a substance that does not involve a change in the identity of the substance
valence electrons
liquid
physical change
ionization
27. A substance that is made from the atoms of two or more elements that are chemically bonded
Pauli exclusion principle
plasma
compound
electron affinity
28. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance
29. Mass is neither created nor destroyed duringordinary chemical or physical reactions
pure substance
conversion factor
mass
law of conservation of mass
30. A positive ion.
noble gas
cation
ion
electron configuration
31. Emission of electrons from a metal when light shines on a metal.
photoelectric effect
Spin Quantum Number
electron affinity
hypothesis
32. 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
noble gas configuration
ionization energy
heterogeneous
33. Not having a uniform composition throughout
heterogeneous
quantum
chemical reaction
model
34. Having a uniform composition throughout
density
electromagnetic radiation
system
homogeneous
35. 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
theory
law of definite proportions
nuclear force
36. A property that depends on the amount of matter that is present
extensive property
physical change
electron configuration
physical property
37. An element that has some characteristics of metals and some characteristics of nonmetals
heterogeneous
density
metalloid
reactant
38. Minimum quantity of energy that can be lost or gained by an atom.
ion
atomic radius
significant figure
quantum
39. The state of matter in which the substance has definite volume and definite shape
atomic radius
SI (Le Système International d'Unités
mass
solid
40. A testable statement
Quantum Theory
atomic number
ionization energy
hypothesis
41. States that it is impossible to determine simultaneously both the position and velocity of an electron or any other particle.
Angular Momentum Quantum Number
Heisenberg Uncertainty Principle
system
scientific notation n where the factor M is a scientific notation
42. The elements of group 17 of the periodic table.
valence electrons
halogens
reactant
significant figure
43. The p-block elements together with the s-block elements.
electromagnetic spectrum
periodic table
atom
main-group elements
44. The emission of a continuous range of frequencies of electromagnetic radiation.
continuous spectrum
family
hertz
photoelectric effect
45. A measure of the amount of matter
halogens
period
metalloid
mass
46. A logical approach to solving problems by observing and collecting data - formulating hypotheses - testing hypotheses - and formulating theories that are supported by data
halogens
noble gas configuration
scientific method
law of multiple proportions
47. The closeness of measurements to the correct or accepted value of the quantity measured
solid
accuracy
ion
lanthanide
48. A substance that reacts in a chemical change
scientific method
chemical reaction
reactant
mixture
49. The smallest unit of an element that maintains the properties of that element
atom
law of conservation of mass
alkaline-earth metals
system
50. Combination of all the forms of electromagnetic radiation.
electromagnetic spectrum
chemistry
heterogeneous
conversion factor