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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. The closeness of a set of measurements of the same quantity made in the same way
liquid
precision
ionization energy
intensive property
2. Narrow beam of the emitted light was shined through a prism - it was separated into four specific colors of the visible spectrum.
line-emission spectrum
conversion factor
alkaline-earth metals
Quantum Theory
3. A measure of the amount of matter
excited state
valence electrons
period
mass
4. The smallest unit of an element that maintains the properties of that element
molar mass
atom
intensive property
accuracy
5. The d-block elements are metals with typical metallic properties.
hertz
transition metals
chemical reaction
law of conservation of mass
6. The 14 elements with the atomic numbers 90-103.
actinide
chemical reaction
volume
Magnetic Quantum Number
7. Atoms of the same element that have different masses
isotopes
electron affinity
family
mole
8. A 3D region around the nucleus that indicates the probable location of an electron.
plasma
orbital
model
hertz
9. A physical change of a substance from one state to another
extensive property
nonmetal
theory
change of state
10. The ratio of mass to volume or mass divided by volume
density
family
atomic mass unit
liquid
11. The smallest unit of an element that maintains the properties of that element
atom
metal
chemical property
Spin Quantum Number
12. Something that has magnitude - size - or amount
quantity
electron affinity
accuracy
isotopes
13. Particle of electromagnetic radiation having zero mass and carrying a quantum of energy.
photon
chemical reaction
Hund's rule
law of definite proportions
14. The elements of group 17 of the periodic table.
ionization energy
halogens
homogeneous
Principle Quantum Number
15. Two quantities that give a constant value when one is divided by the other
hypothesis
direct proportion
Quantum Numbers
heterogeneous
16. 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
cation
solid
alkaline-earth metals
pure substance
17. A measure of the gravitational pull on matter
atom
weight
Pauli exclusion principle
intensive property
18. A form of energy that exhibits wavelike behavior as it travels through space (3.00x108 m/s)
law of definite proportions
matter
electromagnetic radiation
law of conservation of mass
19. Any digit in a measurement that is known with certainty plus one final digit - which is somewhat uncertain or is estimated
significant figure
homogeneous
plasma
law of definite proportions
20. 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
chemical
change of state
law of definite proportions
atom
21. The state of matter in which the substance has definite volume and definite shape
solid
law of conservation of mass
model
lanthanide
22. Mass is neither created nor destroyed duringordinary chemical or physical reactions
significant figure
plasma
noble gas
law of conservation of mass
23. A unit that is a combination of SI base units
derived unit
line-emission spectrum
Spin Quantum Number
atomic radius
24. The state of matter in which a substance has neither definite volume nor definite shape
Avogadro's number
continuous spectrum
gas
metal
25. Two quantities that have a constant mathematical product
cation
inverse proportion
isotopes
chemical change
26. The emission of a continuous range of frequencies of electromagnetic radiation.
electromagnetic spectrum
continuous spectrum
theory
average atomic mass
27. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance
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28. The number of protons in the nucleus of each atom of an element
percent error
atomic number
homogeneous
photoelectric effect
29. A measure of the ability of an atom in a chemical compound to attract electrons from another atom in the compound.
halogens
electronegativity
metal
Angular Momentum Quantum Number
30. Having a uniform composition throughout
homogeneous
periodic law
product
element
31. Which suborbital. (Py - Px - Pz)
law of conservation of mass
periodic law
Magnetic Quantum Number
metal
32. The total number of protons and neutrons in the nucleus of an isotope
scientific notation n where the factor M is a scientific notation
plasma
physical property
mass number
33. Any substance that has a definite composition
group
chemical
atomic radius
hertz
34. Any process that results in the formation of an ion.
isotopes
valence electrons
SI (Le Système International d'Unités
ionization
35. The elements of group 1 of the periodic table.
halogens
alkali metals
atomic radius
SI (Le Système International d'Unités
36. A negative ion.
anion
Quantum Theory
main-group elements
physical property
37. A ratio derived from the equality between two different units that can be used to convert from one unit to the other
actinide
direct proportion
group
conversion factor
38. One wave per second.
hertz
valence electrons
chemical reaction
theory
39. 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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40. No two electrons in the same atom can have the same set of four quantum numbers
Pauli exclusion principle
chemical reaction
alkaline-earth metals
electron configuration
41. 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
ion
model
lanthanide
law of multiple proportions
42. The measurement system accepted worldwide
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43. Specify the properties of atomic orbitals and the properties of electrons in orbitals.
electromagnetic radiation
Aufaub principle
Quantum Numbers
frequency
44. The general term for any isotope of any element
transition metals
nuclide
reactant
chemical reaction
45. The physical and chemical properties of the elements are periodic functions of their atomic numbers.
periodic law
model
excited state
Heisenberg Uncertainty Principle
46. The study of the composition - structure - and properties of matter and the changes it undergoes
family
Pauli exclusion principle
actinide
chemistry
47. An electron occupies the lowest-energy orbital that can receive it
chemical change
actinide
Aufaub principle
nonmetal
48. The mass of one mole of a pure substance
period
Principle Quantum Number
molar mass
excited state
49. A substance that reacts in a chemical change
isotopes
ground state
chemical reaction
reactant
50. The energy required to remove one electron from a neutral atom of an element.
isotopes
plasma
ionization energy
chemistry