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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. 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.
periodic table
compound
halogens
chemistry
2. The arrangement of electrons in an atom
electronegativity
electron configuration
Heisenberg Uncertainty Principle
atomic mass unit
3. The ratio of mass to volume or mass divided by volume
law of multiple proportions
isotopes
inverse proportion
density
4. The total amount of energy level an atom has.
direct proportion
Principle Quantum Number
precision
mass number
5. Lowest energy state of an atom.
ground state
chemistry
Hund's rule
Angular Momentum Quantum Number
6. The measurement system accepted worldwide
7. A 3D region around the nucleus that indicates the probable location of an electron.
Pauli exclusion principle
orbital
accuracy
gas
8. The state of matter in which the substance has a definite volume but an indefinite shape
liquid
intensive property
molar mass
mixture
9. Something that has magnitude - size - or amount
Spin Quantum Number
mass
Magnetic Quantum Number
quantity
10. Particle of electromagnetic radiation having zero mass and carrying a quantum of energy.
main-group elements
photon
excited state
scientific notation n where the factor M is a scientific notation
11. An outer main energy level occupied - in most cases - by 8 electrons
model
heterogeneous
noble gas configuration
product
12. The total number of protons and neutrons in the nucleus of an isotope
line-emission spectrum
metalloid
period
mass number
13. A blend of two or more kinds of matter - each of which retains its own identity and properties
family
line-emission spectrum
mixture
excited state
14. Which way it spins. (up or down)
law of multiple proportions
Spin Quantum Number
element
ion
15. A change in a substance that does not involve a change in the identity of the substance
physical change
heterogeneous
electron configuration
chemistry
16. A unit that is a combination of SI base units
Avogadro's number
Magnetic Quantum Number
derived unit
transition metals
17. The state of matter in which a substance has neither definite volume nor definite shape
gas
average atomic mass
percent error
homogeneous
18. The weighted average of the atomic masses of thenaturally occurring isotopes of an element
solid
percent error
average atomic mass
noble gas configuration
19. An explanation of how phenomena occur and how data or events are related
Avogadro's number
model
alkali metals
scientific method
20. A vertical column of the periodic table
group
hertz
Avogadro's number
actinide
21. The Group 18 elements (helium - neon - argon - krypton - xenon - and radon)
element
metal
periodic table
noble gas
22. Which suborbital. (Py - Px - Pz)
chemical reaction
scientific notation n where the factor M is a scientific notation
change of state
Magnetic Quantum Number
23. Mass is neither created nor destroyed duringordinary chemical or physical reactions
mole
alkali metals
law of conservation of mass
molar mass
24. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance
25. An atom or group of bonded atoms that has a positive or negative charge.
ion
compound
ground state
chemical reaction
26. A property that does not depend on the amount of matter present
wavelength
compound
intensive property
ionization
27. A specific portion of matter in a given region of space that has been selected for study during an experiment or observation
Quantum Theory
Quantum Numbers
system
atomic radius
28. 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
alkaline-earth metals
change of state
law of multiple proportions
noble gas configuration
29. A vertical column of the periodic table
mole
Quantum Theory
group
family
30. Any substance that has a definite composition
chemical
orbital
wavelength
lanthanide
31. An element that has some characteristics of metals and some characteristics of nonmetals
accuracy
alkali metals
main-group elements
metalloid
32. The electrons available to be lost - gained - or shared in the formation of chemical compounds.
photon
line-emission spectrum
valence electrons
alkaline-earth metals
33. A negative ion.
Spin Quantum Number
Magnetic Quantum Number
anion
homogeneous
34. The closeness of measurements to the correct or accepted value of the quantity measured
system
product
accuracy
chemical
35. 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.
36. A reaction in which one or more substances are converted into different substances
product
electron configuration
homogeneous
chemical reaction
37. The p-block elements together with the s-block elements.
chemical property
Quantum Numbers
main-group elements
Avogadro's number
38. A property that depends on the amount of matter that is present
extensive property
chemistry
mass
wavelength
39. 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
quantity
electron configuration
metalloid
law of definite proportions
40. A positive ion.
period
cation
density
atomic number
41. A value calculated by subtracting the experimental value from the accepted value - dividing the difference by the accepted value - and then multiplying by 100
chemical change
mole
metal
percent error
42. 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
mass
pure substance
hypothesis
physical change
43. An element that is a good conductor of heat and electricity
precision
metal
main-group elements
pure substance
44. Minimum quantity of energy that can be lost or gained by an atom.
electromagnetic spectrum
photoelectric effect
cation
quantum
45. The d-block elements are metals with typical metallic properties.
precision
chemical reaction
transition metals
Avogadro's number
46. The general term for any isotope of any element
chemical
intensive property
nuclide
compound
47. The closeness of a set of measurements of the same quantity made in the same way
heterogeneous
Angular Momentum Quantum Number
precision
nuclide
48. The amount of space occupied by an object
wavelength
volume
orbital
theory
49. Describes mathematically the wave properties of electrons and other very small particles.
Pauli exclusion principle
continuous spectrum
homogeneous
Quantum Theory
50. Not having a uniform composition throughout
heterogeneous
hertz
ion
Angular Momentum Quantum Number