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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
electronegativity
atom
electron configuration
element
2. A high-temperature physical state of matter in which atoms lose their electrons
pure substance
plasma
extensive property
accuracy
3. Which way it spins. (up or down)
Spin Quantum Number
system
chemical property
Avogadro's number
4. Anything that has mass and takes up space
mass number
mass
matter
conversion factor
5. A unit of mass that is exactly 1/12 the mass of a carbon-12atom - or 1.660 540 × 10-27 kg
atomic mass unit
line-emission spectrum
derived unit
nonmetal
6. The ability of a substance to undergo a change that transforms it into a different substance
liquid
chemical property
period
Pauli exclusion principle
7. Not having a uniform composition throughout
electronegativity
heterogeneous
Principle Quantum Number
precision
8. An electron occupies the lowest-energy orbital that can receive it
main-group elements
Aufaub principle
extensive property
alkaline-earth metals
9. A measure of the amount of matter
Magnetic Quantum Number
family
mass
law of definite proportions
10. An atom or group of bonded atoms that has a positive or negative charge.
hertz
system
ground state
ion
11. The weighted average of the atomic masses of thenaturally occurring isotopes of an element
reactant
frequency
average atomic mass
extensive property
12. Combination of all the forms of electromagnetic radiation.
electromagnetic spectrum
electron affinity
electromagnetic radiation
pure substance
13. The ratio of mass to volume or mass divided by volume
density
noble gas
heterogeneous
Magnetic Quantum Number
14. 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
pure substance
cation
group
period
15. States that it is impossible to determine simultaneously both the position and velocity of an electron or any other particle.
transition metals
Heisenberg Uncertainty Principle
intensive property
Pauli exclusion principle
16. A vertical column of the periodic table
Magnetic Quantum Number
family
gas
nuclear force
17. Lowest energy state of an atom.
anion
ground state
electronegativity
Magnetic Quantum Number
18. The smallest unit of an element that maintains the properties of that element
pure substance
chemical change
atom
orbital
19. Mass is neither created nor destroyed duringordinary chemical or physical reactions
law of conservation of mass
plasma
derived unit
solid
20. Any process that results in the formation of an ion.
ionization
line-emission spectrum
chemical change
valence electrons
21. The 14 elements with the atomic numbers 90-103.
change of state
actinide
atom
precision
22. The number of protons in the nucleus of each atom of an element
atomic number
significant figure
mixture
pure substance
23. The total amount of energy level an atom has.
isotopes
Principle Quantum Number
periodic table
compound
24. A testable statement
anion
Principle Quantum Number
scientific notation n where the factor M is a scientific notation
hypothesis
25. The state of matter in which the substance has definite volume and definite shape
photon
physical change
quantity
solid
26. A short-range proton-neutron - proton-proton - or neutrorce that holds the nuclear particles together
nuclear force
Aufaub principle
chemical property
orbital
27. The total number of protons and neutrons in the nucleus of an isotope
mass number
photoelectric effect
metalloid
physical property
28. The amount of space occupied by an object
orbital
volume
scientific notation n where the factor M is a scientific notation
main-group elements
29. 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
line-emission spectrum
periodic law
element
law of definite proportions
30. Two quantities that have a constant mathematical product
inverse proportion
periodic table
scientific notation n where the factor M is a scientific notation
Angular Momentum Quantum Number
31. The closeness of a set of measurements of the same quantity made in the same way
chemical
hertz
precision
alkaline-earth metals
32. A pure substance made of only one kind of atom
element
halogens
continuous spectrum
model
33. 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
law of definite proportions
transition metals
nuclide
34. Distance between corresponding points on adjacent waves.
intensive property
matter
Aufaub principle
wavelength
35. A reaction in which one or more substances are converted into different substances
noble gas configuration
chemical reaction
main-group elements
metal
36. A substance that is made from the atoms of two or more elements that are chemically bonded
scientific notation n where the factor M is a scientific notation
compound
quantum
lanthanide
37. A substance that is formed by a chemical change
atom
matter
product
volume
38. A property that depends on the amount of matter that is present
SI (Le Système International d'Unités
scientific method
isotopes
extensive property
39. A change in a substance that does not involve a change in the identity of the substance
physical change
electron configuration
alkaline-earth metals
Magnetic Quantum Number
40. A property that does not depend on the amount of matter present
system
line-emission spectrum
weight
intensive property
41. An element that has some characteristics of metals and some characteristics of nonmetals
Magnetic Quantum Number
metalloid
periodic table
ion
42. Describes mathematically the wave properties of electrons and other very small particles.
isotopes
density
cation
Quantum Theory
43. State in which an atom has a higher potential energy than it has in it's ground state.
change of state
excited state
pure substance
Quantum Numbers
44. Any digit in a measurement that is known with certainty plus one final digit - which is somewhat uncertain or is estimated
significant figure
physical property
SI (Le Système International d'Unités
chemical reaction
45. Numbers written in the form M ×10 number greater than or equal to 1 but less than 10 and n is a whole number
scientific notation n where the factor M is a scientific notation
Aufaub principle
derived unit
Heisenberg Uncertainty Principle
46. The state of matter in which the substance has a definite volume but an indefinite shape
pure substance
liquid
chemistry
periodic table
47. An element that is a poor conductor of heat and electricity
transition metals
nonmetal
chemical
ground state
48. 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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49. Specify the properties of atomic orbitals and the properties of electrons in orbitals.
percent error
Quantum Numbers
line-emission spectrum
law of definite proportions
50. The electrons available to be lost - gained - or shared in the formation of chemical compounds.
halogens
cation
metal
valence electrons