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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. Mass is neither created nor destroyed duringordinary chemical or physical reactions
mass
law of conservation of mass
molar mass
photon
2. The number of protons in the nucleus of each atom of an element
gas
Hund's rule
wavelength
atomic number
3. 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
system
nonmetal
inverse proportion
pure substance
4. The amount of space occupied by an object
valence electrons
volume
atom
nuclide
5. A blend of two or more kinds of matter - each of which retains its own identity and properties
mixture
ionization energy
ion
Magnetic Quantum Number
6. A substance that is formed by a chemical change
product
quantum
volume
actinide
7. 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
main-group elements
product
mixture
law of definite proportions
8. An element that is a poor conductor of heat and electricity
nonmetal
actinide
weight
noble gas
9. A vertical column of the periodic table
chemical property
group
Aufaub principle
mixture
10. The suborbitals of an atom. (S - P - D - F)
line-emission spectrum
Angular Momentum Quantum Number
frequency
atomic radius
11. A substance that is made from the atoms of two or more elements that are chemically bonded
direct proportion
compound
metal
electromagnetic radiation
12. 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
system
Pauli exclusion principle
significant figure
13. The study of the composition - structure - and properties of matter and the changes it undergoes
continuous spectrum
chemistry
law of conservation of mass
anion
14. Not having a uniform composition throughout
matter
frequency
heterogeneous
mixture
15. A high-temperature physical state of matter in which atoms lose their electrons
family
conversion factor
continuous spectrum
plasma
16. The 14 elements with the atomic numbers 90-103.
element
actinide
electron affinity
chemical change
17. The electrons available to be lost - gained - or shared in the formation of chemical compounds.
valence electrons
mass number
weight
group
18. A change in which one or more substances are converted into different substances
cation
model
chemical change
law of definite proportions
19. One wave per second.
Spin Quantum Number
solid
quantity
hertz
20. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance
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21. The ability of a substance to undergo a change that transforms it into a different substance
chemical property
electronegativity
photoelectric effect
isotopes
22. A specific portion of matter in a given region of space that has been selected for study during an experiment or observation
electronegativity
chemical change
system
electron affinity
23. An element that is a good conductor of heat and electricity
metal
frequency
chemical change
homogeneous
24. The weighted average of the atomic masses of thenaturally occurring isotopes of an element
average atomic mass
weight
hertz
metal
25. The mass of one mole of a pure substance
chemistry
molar mass
ionization energy
liquid
26. A pure substance made of only one kind of atom
Pauli exclusion principle
percent error
element
atomic radius
27. Which suborbital. (Py - Px - Pz)
scientific notation n where the factor M is a scientific notation
quantum
mole
Magnetic Quantum Number
28. Emission of electrons from a metal when light shines on a metal.
actinide
photoelectric effect
average atomic mass
excited state
29. A unit that is a combination of SI base units
Quantum Theory
electromagnetic radiation
anion
derived unit
30. A 3D region around the nucleus that indicates the probable location of an electron.
group
mass
nuclide
orbital
31. State in which an atom has a higher potential energy than it has in it's ground state.
family
excited state
law of multiple proportions
physical property
32. The smallest unit of an element that maintains the properties of that element
periodic table
atom
main-group elements
ionization
33. An atom or group of bonded atoms that has a positive or negative charge.
atomic radius
scientific notation n where the factor M is a scientific notation
ion
lanthanide
34. Specify the properties of atomic orbitals and the properties of electrons in orbitals.
Quantum Numbers
family
Principle Quantum Number
gas
35. Atoms of the same element that have different masses
change of state
isotopes
pure substance
scientific notation n where the factor M is a scientific notation
36. 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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37. The physical and chemical properties of the elements are periodic functions of their atomic numbers.
inverse proportion
system
periodic law
group
38. Two quantities that have a constant mathematical product
mixture
Pauli exclusion principle
inverse proportion
gas
39. Something that has magnitude - size - or amount
quantity
electron configuration
alkaline-earth metals
accuracy
40. A measure of the ability of an atom in a chemical compound to attract electrons from another atom in the compound.
electronegativity
heterogeneous
homogeneous
quantum
41. The smallest unit of an element that maintains the properties of that element
Angular Momentum Quantum Number
atom
theory
average atomic mass
42. States that it is impossible to determine simultaneously both the position and velocity of an electron or any other particle.
chemical
Heisenberg Uncertainty Principle
ionization
Hund's rule
43. A horizontal row of elements in the periodic table
chemical property
period
physical property
law of multiple proportions
44. An electron occupies the lowest-energy orbital that can receive it
direct proportion
Aufaub principle
compound
model
45. The 14 elements with the atomic numbers 58-71.
mixture
lanthanide
accuracy
valence electrons
46. The p-block elements together with the s-block elements.
atom
main-group elements
liquid
model
47. Having a uniform composition throughout
Spin Quantum Number
chemical reaction
mixture
homogeneous
48. The elements of group 2 of the periodic table.
alkaline-earth metals
homogeneous
hypothesis
chemistry
49. The state of matter in which the substance has definite volume and definite shape
solid
line-emission spectrum
gas
transition metals
50. A measure of the gravitational pull on matter
weight
halogens
density
physical property