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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 energy change that occurs when an electron is acquired by a neutral atom.
periodic law
period
compound
electron affinity
2. A short-range proton-neutron - proton-proton - or neutrorce that holds the nuclear particles together
inverse proportion
nuclear force
mixture
alkaline-earth metals
3. An outer main energy level occupied - in most cases - by 8 electrons
precision
frequency
metal
noble gas configuration
4. The amount of a substance that contains as many particles as there areatoms in exactly 12 g of carbon-12
physical property
product
wavelength
mole
5. The Group 18 elements (helium - neon - argon - krypton - xenon - and radon)
noble gas
atom
ionization
metal
6. The mass of one mole of a pure substance
liquid
line-emission spectrum
molar mass
density
7. The closeness of a set of measurements of the same quantity made in the same way
molar mass
law of conservation of mass
precision
nuclear force
8. An element that is a poor conductor of heat and electricity
inverse proportion
nonmetal
solid
Hund's rule
9. The total number of protons and neutrons in the nucleus of an isotope
metalloid
Pauli exclusion principle
law of multiple proportions
mass number
10. Particle of electromagnetic radiation having zero mass and carrying a quantum of energy.
transition metals
photoelectric effect
ground state
photon
11. If two or more different compounds arecomposed of the same two elements - then the ratio of the masses of the secondelement combined with a certain mass of the first element is always a ratio ofsmall whole numbers
chemical property
Heisenberg Uncertainty Principle
homogeneous
law of multiple proportions
12. The physical and chemical properties of the elements are periodic functions of their atomic numbers.
cation
compound
Spin Quantum Number
periodic law
13. The electrons available to be lost - gained - or shared in the formation of chemical compounds.
lanthanide
valence electrons
derived unit
intensive property
14. A property that does not depend on the amount of matter present
Magnetic Quantum Number
average atomic mass
intensive property
Pauli exclusion principle
15. A 3D region around the nucleus that indicates the probable location of an electron.
period
alkaline-earth metals
orbital
line-emission spectrum
16. One wave per second.
hertz
lanthanide
nuclear force
pure substance
17. The energy required to remove one electron from a neutral atom of an element.
metalloid
atomic number
ionization energy
derived unit
18. A high-temperature physical state of matter in which atoms lose their electrons
electronegativity
compound
lanthanide
plasma
19. Emission of electrons from a metal when light shines on a metal.
excited state
photoelectric effect
Quantum Numbers
Hund's rule
20. Narrow beam of the emitted light was shined through a prism - it was separated into four specific colors of the visible spectrum.
period
electromagnetic radiation
line-emission spectrum
transition metals
21. Something that has magnitude - size - or amount
Avogadro's number
law of conservation of mass
quantity
atomic number
22. An element that is a good conductor of heat and electricity
model
metal
significant figure
actinide
23. The elements of group 17 of the periodic table.
atomic number
system
average atomic mass
halogens
24. Mass is neither created nor destroyed duringordinary chemical or physical reactions
product
mixture
law of conservation of mass
reactant
25. No two electrons in the same atom can have the same set of four quantum numbers
atom
atomic mass unit
excited state
Pauli exclusion principle
26. A negative ion.
mass number
noble gas
Spin Quantum Number
anion
27. Describes mathematically the wave properties of electrons and other very small particles.
chemical
ion
gas
Quantum Theory
28. A value calculated by subtracting the experimental value from the accepted value - dividing the difference by the accepted value - and then multiplying by 100
line-emission spectrum
Principle Quantum Number
percent error
Aufaub principle
29. A change in which one or more substances are converted into different substances
chemical change
compound
ground state
physical property
30. An electron occupies the lowest-energy orbital that can receive it
change of state
plasma
solid
Aufaub principle
31. A broad generalization that explains a body of facts or phenomena
Magnetic Quantum Number
chemical reaction
theory
accuracy
32. A unit that is a combination of SI base units
conversion factor
derived unit
density
mass number
33. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance
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34. A specific portion of matter in a given region of space that has been selected for study during an experiment or observation
Avogadro's number
photon
system
Pauli exclusion principle
35. The total amount of energy level an atom has.
precision
Principle Quantum Number
heterogeneous
density
36. 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.
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37. A measure of the gravitational pull on matter
family
weight
physical property
intensive property
38. The elements of group 1 of the periodic table.
periodic law
alkali metals
atom
period
39. The ratio of mass to volume or mass divided by volume
reactant
density
metal
precision
40. A characteristic that can be observed or measured without changing the identity of the substance
physical property
electronegativity
intensive property
orbital
41. An element that has some characteristics of metals and some characteristics of nonmetals
Magnetic Quantum Number
element
metalloid
solid
42. A positive ion.
valence electrons
physical property
quantum
cation
43. A pure substance made of only one kind of atom
family
transition metals
element
isotopes
44. A blend of two or more kinds of matter - each of which retains its own identity and properties
metalloid
volume
mixture
reactant
45. Two quantities that have a constant mathematical product
inverse proportion
frequency
pure substance
nuclide
46. A unit of mass that is exactly 1/12 the mass of a carbon-12atom - or 1.660 540 × 10-27 kg
atom
atomic mass unit
solid
derived unit
47. Distance between corresponding points on adjacent waves.
mass number
liquid
main-group elements
wavelength
48. The closeness of measurements to the correct or accepted value of the quantity measured
halogens
Hund's rule
accuracy
electromagnetic radiation
49. A vertical column of the periodic table
theory
electron affinity
periodic law
group
50. Number of waves that pass a given point in a specific time - usually one second.
frequency
mixture
chemistry
mass