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Test your basic knowledge |
Pre - AP Chemistry
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Subjects
:
pre-ap
,
science
Instructions:
Answer 50 questions in 15 minutes.
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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. A short-range proton-neutron - proton-proton - or neutrorce that holds the nuclear particles together
nuclear force
mole
Principle Quantum Number
chemical property
2. The ratio of mass to volume or mass divided by volume
Quantum Numbers
product
density
nuclear force
3. The state of matter in which the substance has definite volume and definite shape
weight
solid
ionization energy
reactant
4. A pure substance made of only one kind of atom
alkali metals
element
anion
Heisenberg Uncertainty Principle
5. A property that does not depend on the amount of matter present
metal
law of definite proportions
system
intensive property
6. 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
periodic law
chemical reaction
Avogadro's number
7. A reaction in which one or more substances are converted into different substances
ionization
ground state
Quantum Numbers
chemical reaction
8. An element that has some characteristics of metals and some characteristics of nonmetals
metalloid
quantum
element
plasma
9. The measurement system accepted worldwide
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10. An atom or group of bonded atoms that has a positive or negative charge.
cation
ion
physical property
periodic table
11. An explanation of how phenomena occur and how data or events are related
liquid
model
element
atomic mass unit
12. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance
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13. The general term for any isotope of any element
solid
Hund's rule
nuclide
average atomic mass
14. A broad generalization that explains a body of facts or phenomena
change of state
theory
period
atomic radius
15. A negative ion.
anion
significant figure
nonmetal
family
16. The energy required to remove one electron from a neutral atom of an element.
law of multiple proportions
hertz
ionization energy
Principle Quantum Number
17. One wave per second.
plasma
metal
ground state
hertz
18. An electron occupies the lowest-energy orbital that can receive it
change of state
derived unit
lanthanide
Aufaub principle
19. A substance that is made from the atoms of two or more elements that are chemically bonded
SI (Le Système International d'Unités
compound
Principle Quantum Number
periodic table
20. The 14 elements with the atomic numbers 58-71.
heterogeneous
actinide
Quantum Theory
lanthanide
21. Two quantities that give a constant value when one is divided by the other
atomic mass unit
weight
Hund's rule
direct proportion
22. Any substance that has a definite composition
matter
chemical
alkaline-earth metals
noble gas
23. No two electrons in the same atom can have the same set of four quantum numbers
Pauli exclusion principle
compound
frequency
group
24. The elements of group 2 of the periodic table.
valence electrons
pure substance
alkaline-earth metals
precision
25. An element that is a good conductor of heat and electricity
nonmetal
metal
transition metals
cation
26. The arrangement of electrons in an atom
scientific method
electron configuration
periodic table
average atomic mass
27. 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
Principle Quantum Number
element
scientific notation n where the factor M is a scientific notation
28. Any digit in a measurement that is known with certainty plus one final digit - which is somewhat uncertain or is estimated
significant figure
matter
Heisenberg Uncertainty Principle
ionization
29. States that it is impossible to determine simultaneously both the position and velocity of an electron or any other particle.
Heisenberg Uncertainty Principle
nuclide
direct proportion
metalloid
30. Lowest energy state of an atom.
Quantum Numbers
change of state
heterogeneous
ground state
31. The study of the composition - structure - and properties of matter and the changes it undergoes
main-group elements
chemistry
element
valence electrons
32. Having a uniform composition throughout
mixture
homogeneous
average atomic mass
metalloid
33. Specify the properties of atomic orbitals and the properties of electrons in orbitals.
family
model
periodic law
Quantum Numbers
34. A testable statement
physical property
hypothesis
periodic table
photoelectric effect
35. A change in which one or more substances are converted into different substances
physical property
chemical change
theory
electronegativity
36. A 3D region around the nucleus that indicates the probable location of an electron.
orbital
pure substance
nonmetal
alkaline-earth metals
37. Anything that has mass and takes up space
wavelength
compound
extensive property
matter
38. The state of matter in which the substance has a definite volume but an indefinite shape
percent error
liquid
conversion factor
halogens
39. A measure of the ability of an atom in a chemical compound to attract electrons from another atom in the compound.
hypothesis
electronegativity
electron configuration
physical change
40. Particle of electromagnetic radiation having zero mass and carrying a quantum of energy.
weight
photon
percent error
matter
41. A vertical column of the periodic table
family
extensive property
Pauli exclusion principle
atomic radius
42. A high-temperature physical state of matter in which atoms lose their electrons
SI (Le Système International d'Unités
plasma
reactant
continuous spectrum
43. State in which an atom has a higher potential energy than it has in it's ground state.
model
quantity
excited state
period
44. The number of protons in the nucleus of each atom of an element
SI (Le Système International d'Unités
atomic number
mole
photon
45. Distance between corresponding points on adjacent waves.
wavelength
weight
accuracy
scientific method
46. The smallest unit of an element that maintains the properties of that element
Angular Momentum Quantum Number
chemical reaction
atom
model
47. The Group 18 elements (helium - neon - argon - krypton - xenon - and radon)
electron configuration
physical property
hertz
noble gas
48. An element that is a poor conductor of heat and electricity
nonmetal
intensive property
extensive property
mass number
49. 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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50. The total number of protons and neutrons in the nucleus of an isotope
alkali metals
mass number
cation
anion
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