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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. Numbers written in the form M ×10 number greater than or equal to 1 but less than 10 and n is a whole number
law of definite proportions
Hund's rule
periodic law
scientific notation n where the factor M is a scientific notation
2. A measure of the ability of an atom in a chemical compound to attract electrons from another atom in the compound.
quantity
electronegativity
Avogadro's number
plasma
3. A unit that is a combination of SI base units
liquid
atomic mass unit
derived unit
volume
4. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance
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5. A reaction in which one or more substances are converted into different substances
reactant
main-group elements
chemical reaction
law of multiple proportions
6. The closeness of measurements to the correct or accepted value of the quantity measured
accuracy
electromagnetic spectrum
electron configuration
mass
7. Lowest energy state of an atom.
ground state
intensive property
scientific notation n where the factor M is a scientific notation
ionization
8. Having a uniform composition throughout
frequency
continuous spectrum
accuracy
homogeneous
9. A change in a substance that does not involve a change in the identity of the substance
physical change
cation
molar mass
derived unit
10. A change in which one or more substances are converted into different substances
quantum
ground state
chemical change
group
11. Which way it spins. (up or down)
Spin Quantum Number
Magnetic Quantum Number
cation
pure substance
12. The arrangement of electrons in an atom
quantum
extensive property
scientific notation n where the factor M is a scientific notation
electron configuration
13. No two electrons in the same atom can have the same set of four quantum numbers
plasma
gas
Magnetic Quantum Number
Pauli exclusion principle
14. The number of protons in the nucleus of each atom of an element
atomic number
actinide
alkaline-earth metals
SI (Le Système International d'Unités
15. A broad generalization that explains a body of facts or phenomena
physical property
theory
alkali metals
Principle Quantum Number
16. Minimum quantity of energy that can be lost or gained by an atom.
quantum
alkaline-earth metals
mixture
excited state
17. States that it is impossible to determine simultaneously both the position and velocity of an electron or any other particle.
significant figure
line-emission spectrum
Heisenberg Uncertainty Principle
mole
18. The energy change that occurs when an electron is acquired by a neutral atom.
period
electron affinity
atom
average atomic mass
19. The amount of a substance that contains as many particles as there areatoms in exactly 12 g of carbon-12
mole
ionization
lanthanide
inverse proportion
20. Distance between corresponding points on adjacent waves.
direct proportion
model
average atomic mass
wavelength
21. An element that is a poor conductor of heat and electricity
hypothesis
line-emission spectrum
Heisenberg Uncertainty Principle
nonmetal
22. Two quantities that have a constant mathematical product
chemical reaction
metalloid
law of conservation of mass
inverse proportion
23. A substance that is formed by a chemical change
anion
product
percent error
Quantum Numbers
24. Combination of all the forms of electromagnetic radiation.
electromagnetic spectrum
noble gas
periodic table
mass number
25. The measurement system accepted worldwide
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26. The Group 18 elements (helium - neon - argon - krypton - xenon - and radon)
orbital
mass
ground state
noble gas
27. A short-range proton-neutron - proton-proton - or neutrorce that holds the nuclear particles together
pure substance
element
SI (Le Système International d'Unités
nuclear force
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
heterogeneous
ionization energy
Magnetic Quantum Number
percent error
29. The total amount of energy level an atom has.
gas
photoelectric effect
Principle Quantum Number
mass number
30. An electron occupies the lowest-energy orbital that can receive it
ionization
Aufaub principle
element
scientific method
31. The weighted average of the atomic masses of thenaturally occurring isotopes of an element
average atomic mass
Heisenberg Uncertainty Principle
change of state
group
32. 1/2 the distance between the nuclei of identical atoms that are bonded together.
atomic radius
chemical reaction
law of multiple proportions
actinide
33. The 14 elements with the atomic numbers 58-71.
mass number
noble gas
lanthanide
chemical change
34. Emission of electrons from a metal when light shines on a metal.
valence electrons
photoelectric effect
frequency
cation
35. A form of energy that exhibits wavelike behavior as it travels through space (3.00x108 m/s)
electronegativity
electromagnetic radiation
Heisenberg Uncertainty Principle
law of multiple proportions
36. A ratio derived from the equality between two different units that can be used to convert from one unit to the other
Quantum Numbers
mass number
nuclear force
conversion factor
37. 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.
ion
Angular Momentum Quantum Number
periodic table
nuclide
38. 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
quantity
alkali metals
valence electrons
39. Atoms of the same element that have different masses
family
hypothesis
electromagnetic spectrum
isotopes
40. The elements of group 2 of the periodic table.
Hund's rule
weight
alkaline-earth metals
metalloid
41. Two quantities that give a constant value when one is divided by the other
quantity
significant figure
direct proportion
atom
42. A pure substance made of only one kind of atom
actinide
precision
element
scientific method
43. The energy required to remove one electron from a neutral atom of an element.
conversion factor
ionization energy
chemistry
electron configuration
44. The d-block elements are metals with typical metallic properties.
law of definite proportions
transition metals
alkaline-earth metals
derived unit
45. A substance that reacts in a chemical change
Quantum Theory
Heisenberg Uncertainty Principle
reactant
orbital
46. The amount of space occupied by an object
noble gas configuration
quantum
photon
volume
47. A substance that is made from the atoms of two or more elements that are chemically bonded
atomic number
nonmetal
Heisenberg Uncertainty Principle
compound
48. A blend of two or more kinds of matter - each of which retains its own identity and properties
mass number
mixture
transition metals
weight
49. Number of waves that pass a given point in a specific time - usually one second.
lanthanide
compound
matter
frequency
50. Anything that has mass and takes up space
orbital
reactant
matter
law of conservation of mass