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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.
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 measurement system accepted worldwide
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2. Atoms of the same element that have different masses
plasma
intensive property
weight
isotopes
3. 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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4. An atom or group of bonded atoms that has a positive or negative charge.
chemical change
noble gas configuration
ion
cation
5. An electron occupies the lowest-energy orbital that can receive it
chemical change
electromagnetic spectrum
Quantum Numbers
Aufaub principle
6. A value calculated by subtracting the experimental value from the accepted value - dividing the difference by the accepted value - and then multiplying by 100
valence electrons
intensive property
percent error
ionization energy
7. The smallest unit of an element that maintains the properties of that element
atom
mass number
Hund's rule
percent error
8. A broad generalization that explains a body of facts or phenomena
ionization
theory
average atomic mass
system
9. A short-range proton-neutron - proton-proton - or neutrorce that holds the nuclear particles together
law of conservation of mass
nuclear force
element
continuous spectrum
10. An element that is a good conductor of heat and electricity
chemical change
scientific notation n where the factor M is a scientific notation
element
metal
11. Anything that has mass and takes up space
cation
transition metals
conversion factor
matter
12. A measure of the ability of an atom in a chemical compound to attract electrons from another atom in the compound.
valence electrons
Principle Quantum Number
electronegativity
Magnetic Quantum Number
13. Minimum quantity of energy that can be lost or gained by an atom.
electromagnetic spectrum
nuclear force
quantum
valence electrons
14. The total number of protons and neutrons in the nucleus of an isotope
physical property
Angular Momentum Quantum Number
mass number
Spin Quantum Number
15. The number of protons in the nucleus of each atom of an element
atomic number
periodic table
inverse proportion
mass
16. The d-block elements are metals with typical metallic properties.
transition metals
ionization energy
photoelectric effect
electron configuration
17. The physical and chemical properties of the elements are periodic functions of their atomic numbers.
ground state
periodic law
product
Magnetic Quantum Number
18. The energy required to remove one electron from a neutral atom of an element.
accuracy
ionization energy
mass number
Spin Quantum Number
19. A substance that is formed by a chemical change
gas
SI (Le Système International d'Unités
noble gas configuration
product
20. The study of the composition - structure - and properties of matter and the changes it undergoes
Quantum Theory
isotopes
chemistry
metalloid
21. The p-block elements together with the s-block elements.
periodic table
Avogadro's number
main-group elements
Quantum Theory
22. The electrons available to be lost - gained - or shared in the formation of chemical compounds.
valence electrons
Avogadro's number
hertz
periodic law
23. A change in a substance that does not involve a change in the identity of the substance
chemical
physical change
molar mass
period
24. No two electrons in the same atom can have the same set of four quantum numbers
orbital
Pauli exclusion principle
volume
significant figure
25. An element that has some characteristics of metals and some characteristics of nonmetals
Quantum Numbers
metalloid
scientific method
Avogadro's number
26. Which way it spins. (up or down)
law of conservation of mass
excited state
Hund's rule
Spin Quantum Number
27. The ability of a substance to undergo a change that transforms it into a different substance
chemical property
law of definite proportions
excited state
chemical change
28. State in which an atom has a higher potential energy than it has in it's ground state.
ionization energy
weight
excited state
line-emission spectrum
29. Which suborbital. (Py - Px - Pz)
wavelength
hertz
law of multiple proportions
Magnetic Quantum Number
30. A vertical column of the periodic table
electronegativity
alkali metals
Spin Quantum Number
group
31. A characteristic that can be observed or measured without changing the identity of the substance
Angular Momentum Quantum Number
conversion factor
physical property
chemical
32. The state of matter in which a substance has neither definite volume nor definite shape
physical change
gas
alkaline-earth metals
chemical
33. A measure of the gravitational pull on matter
matter
weight
hypothesis
wavelength
34. An outer main energy level occupied - in most cases - by 8 electrons
noble gas configuration
homogeneous
Principle Quantum Number
metal
35. The arrangement of electrons in an atom
Spin Quantum Number
electron configuration
Quantum Numbers
orbital
36. A physical change of a substance from one state to another
Magnetic Quantum Number
actinide
change of state
direct proportion
37. The weighted average of the atomic masses of thenaturally occurring isotopes of an element
average atomic mass
accuracy
solid
direct proportion
38. 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
photon
conversion factor
chemical change
law of multiple proportions
39. The ratio of mass to volume or mass divided by volume
density
electron configuration
molar mass
valence electrons
40. One wave per second.
change of state
Aufaub principle
hertz
Quantum Theory
41. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance
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42. Specify the properties of atomic orbitals and the properties of electrons in orbitals.
percent error
photoelectric effect
periodic law
Quantum Numbers
43. Any process that results in the formation of an ion.
solid
electromagnetic spectrum
electron affinity
ionization
44. A unit of mass that is exactly 1/12 the mass of a carbon-12atom - or 1.660 540 × 10-27 kg
photoelectric effect
excited state
Heisenberg Uncertainty Principle
atomic mass unit
45. A ratio derived from the equality between two different units that can be used to convert from one unit to the other
conversion factor
metalloid
frequency
element
46. The Group 18 elements (helium - neon - argon - krypton - xenon - and radon)
scientific notation n where the factor M is a scientific notation
Angular Momentum Quantum Number
noble gas
Spin Quantum Number
47. A substance that reacts in a chemical change
reactant
liquid
weight
Heisenberg Uncertainty Principle
48. A property that depends on the amount of matter that is present
valence electrons
gas
nuclear force
extensive property
49. The amount of space occupied by an object
metalloid
volume
homogeneous
ion
50. An explanation of how phenomena occur and how data or events are related
model
chemical change
photoelectric effect
isotopes
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