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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. Atoms of the same element that have different masses
isotopes
heterogeneous
change of state
quantum
2. A logical approach to solving problems by observing and collecting data - formulating hypotheses - testing hypotheses - and formulating theories that are supported by data
change of state
Quantum Numbers
scientific method
physical change
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.
4. A pure substance made of only one kind of atom
valence electrons
element
mass
Hund's rule
5. The state of matter in which a substance has neither definite volume nor definite shape
precision
photoelectric effect
quantum
gas
6. Describes mathematically the wave properties of electrons and other very small particles.
Magnetic Quantum Number
extensive property
Quantum Theory
physical property
7. The energy required to remove one electron from a neutral atom of an element.
metal
chemical reaction
family
ionization energy
8. The physical and chemical properties of the elements are periodic functions of their atomic numbers.
periodic law
intensive property
law of conservation of mass
compound
9. A positive ion.
cation
scientific method
product
periodic table
10. A short-range proton-neutron - proton-proton - or neutrorce that holds the nuclear particles together
continuous spectrum
nuclear force
orbital
periodic law
11. 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
conversion factor
law of multiple proportions
product
liquid
12. Narrow beam of the emitted light was shined through a prism - it was separated into four specific colors of the visible spectrum.
nonmetal
line-emission spectrum
nuclear force
ionization
13. Number of waves that pass a given point in a specific time - usually one second.
law of conservation of mass
ionization energy
model
frequency
14. The closeness of measurements to the correct or accepted value of the quantity measured
group
accuracy
wavelength
mixture
15. The number of protons in the nucleus of each atom of an element
intensive property
atomic number
nuclide
law of conservation of mass
16. A 3D region around the nucleus that indicates the probable location of an electron.
quantity
orbital
frequency
atomic radius
17. The study of the composition - structure - and properties of matter and the changes it undergoes
chemistry
chemical change
scientific method
lanthanide
18. The ratio of mass to volume or mass divided by volume
mixture
electron affinity
halogens
density
19. Something that has magnitude - size - or amount
electron affinity
actinide
mixture
quantity
20. The d-block elements are metals with typical metallic properties.
chemical
Angular Momentum Quantum Number
transition metals
accuracy
21. A form of energy that exhibits wavelike behavior as it travels through space (3.00x108 m/s)
atom
line-emission spectrum
periodic law
electromagnetic radiation
22. An element that is a good conductor of heat and electricity
Magnetic Quantum Number
metal
percent error
nonmetal
23. An element that is a poor conductor of heat and electricity
nonmetal
Principle Quantum Number
significant figure
isotopes
24. The total number of protons and neutrons in the nucleus of an isotope
heterogeneous
mass number
average atomic mass
Angular Momentum Quantum Number
25. A measure of the ability of an atom in a chemical compound to attract electrons from another atom in the compound.
group
electronegativity
Spin Quantum Number
cation
26. The arrangement of electrons in an atom
isotopes
orbital
electron configuration
change of state
27. Particle of electromagnetic radiation having zero mass and carrying a quantum of energy.
product
photon
homogeneous
weight
28. A substance that reacts in a chemical change
reactant
Magnetic Quantum Number
mass number
hertz
29. Not having a uniform composition throughout
weight
pure substance
intensive property
heterogeneous
30. A characteristic that can be observed or measured without changing the identity of the substance
mass
hertz
physical change
physical property
31. The total amount of energy level an atom has.
Pauli exclusion principle
chemistry
Principle Quantum Number
accuracy
32. A vertical column of the periodic table
group
family
nonmetal
periodic law
33. A physical change of a substance from one state to another
electronegativity
accuracy
photoelectric effect
change of state
34. The amount of a substance that contains as many particles as there areatoms in exactly 12 g of carbon-12
mole
nuclear force
electron affinity
Magnetic Quantum Number
35. Mass is neither created nor destroyed duringordinary chemical or physical reactions
halogens
weight
quantum
law of conservation of mass
36. An electron occupies the lowest-energy orbital that can receive it
weight
Aufaub principle
Magnetic Quantum Number
ionization
37. A vertical column of the periodic table
transition metals
main-group elements
family
alkaline-earth metals
38. The elements of group 1 of the periodic table.
alkali metals
periodic table
valence electrons
ionization
39. An atom or group of bonded atoms that has a positive or negative charge.
Principle Quantum Number
inverse proportion
Aufaub principle
ion
40. States that it is impossible to determine simultaneously both the position and velocity of an electron or any other particle.
valence electrons
law of definite proportions
Heisenberg Uncertainty Principle
nuclide
41. An explanation of how phenomena occur and how data or events are related
periodic table
direct proportion
model
significant figure
42. A change in which one or more substances are converted into different substances
mixture
chemical change
product
average atomic mass
43. The p-block elements together with the s-block elements.
SI (Le Système International d'Unités
Pauli exclusion principle
average atomic mass
main-group elements
44. 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
law of definite proportions
chemical
weight
precision
45. The elements of group 17 of the periodic table.
matter
group
physical property
halogens
46. Lowest energy state of an atom.
ground state
halogens
Quantum Numbers
actinide
47. A measure of the gravitational pull on matter
chemistry
significant figure
mole
weight
48. An element that has some characteristics of metals and some characteristics of nonmetals
atom
conversion factor
metalloid
orbital
49. Having a uniform composition throughout
law of conservation of mass
mass number
homogeneous
Quantum Theory
50. The general term for any isotope of any element
physical property
reactant
ground state
nuclide