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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 smallest unit of an element that maintains the properties of that element
atom
element
periodic table
volume
2. A 3D region around the nucleus that indicates the probable location of an electron.
ground state
quantum
halogens
orbital
3. The d-block elements are metals with typical metallic properties.
atom
transition metals
Angular Momentum Quantum Number
physical property
4. The ability of a substance to undergo a change that transforms it into a different substance
electromagnetic spectrum
electron affinity
mixture
chemical property
5. The smallest unit of an element that maintains the properties of that element
plasma
atom
actinide
periodic table
6. A pure substance made of only one kind of atom
direct proportion
scientific notation n where the factor M is a scientific notation
alkali metals
element
7. A substance that is made from the atoms of two or more elements that are chemically bonded
atomic number
model
compound
element
8. A unit of mass that is exactly 1/12 the mass of a carbon-12atom - or 1.660 540 × 10-27 kg
chemical property
scientific method
atomic mass unit
Quantum Theory
9. The ratio of mass to volume or mass divided by volume
atomic number
density
electronegativity
chemical
10. A property that depends on the amount of matter that is present
extensive property
noble gas
Spin Quantum Number
isotopes
11. The study of the composition - structure - and properties of matter and the changes it undergoes
derived unit
mixture
chemistry
electromagnetic radiation
12. Any process that results in the formation of an ion.
heterogeneous
Quantum Theory
law of definite proportions
ionization
13. A testable statement
hypothesis
density
atomic number
actinide
14. Anything that has mass and takes up space
Angular Momentum Quantum Number
matter
model
mixture
15. 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
atom
periodic table
law of multiple proportions
chemistry
16. The Group 18 elements (helium - neon - argon - krypton - xenon - and radon)
wavelength
conversion factor
noble gas
main-group elements
17. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance
18. The state of matter in which the substance has a definite volume but an indefinite shape
main-group elements
metalloid
electromagnetic radiation
liquid
19. A unit that is a combination of SI base units
matter
physical property
derived unit
alkaline-earth metals
20. The 14 elements with the atomic numbers 90-103.
atomic number
ion
actinide
liquid
21. Describes mathematically the wave properties of electrons and other very small particles.
Quantum Theory
model
chemical
orbital
22. The physical and chemical properties of the elements are periodic functions of their atomic numbers.
precision
reactant
chemical
periodic law
23. The number of protons in the nucleus of each atom of an element
isotopes
atomic number
molar mass
weight
24. The closeness of a set of measurements of the same quantity made in the same way
atomic mass unit
precision
noble gas configuration
chemical change
25. Emission of electrons from a metal when light shines on a metal.
noble gas
nuclide
photoelectric effect
Angular Momentum Quantum Number
26. The elements of group 17 of the periodic table.
quantum
halogens
quantity
wavelength
27. A vertical column of the periodic table
family
ionization
photoelectric effect
model
28. A substance that reacts in a chemical change
reactant
precision
line-emission spectrum
quantity
29. 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
alkaline-earth metals
law of definite proportions
anion
direct proportion
30. The state of matter in which the substance has definite volume and definite shape
Aufaub principle
wavelength
family
solid
31. 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.
ground state
periodic table
homogeneous
atomic number
32. A short-range proton-neutron - proton-proton - or neutrorce that holds the nuclear particles together
Hund's rule
nuclear force
heterogeneous
Pauli exclusion principle
33. A characteristic that can be observed or measured without changing the identity of the substance
average atomic mass
orbital
scientific method
physical property
34. The energy change that occurs when an electron is acquired by a neutral atom.
density
hypothesis
electron affinity
electronegativity
35. The amount of a substance that contains as many particles as there areatoms in exactly 12 g of carbon-12
Hund's rule
alkaline-earth metals
electron configuration
mole
36. The energy required to remove one electron from a neutral atom of an element.
noble gas configuration
hypothesis
law of multiple proportions
ionization energy
37. An outer main energy level occupied - in most cases - by 8 electrons
homogeneous
noble gas configuration
mixture
orbital
38. An explanation of how phenomena occur and how data or events are related
ion
chemical property
lanthanide
model
39. Lowest energy state of an atom.
metal
heterogeneous
ground state
percent error
40. A form of energy that exhibits wavelike behavior as it travels through space (3.00x108 m/s)
ionization
precision
wavelength
electromagnetic radiation
41. No two electrons in the same atom can have the same set of four quantum numbers
chemical property
Pauli exclusion principle
volume
electronegativity
42. The electrons available to be lost - gained - or shared in the formation of chemical compounds.
physical property
valence electrons
reactant
atom
43. An element that is a good conductor of heat and electricity
continuous spectrum
metal
electromagnetic spectrum
law of multiple proportions
44. The elements of group 1 of the periodic table.
physical change
alkali metals
transition metals
period
45. Which suborbital. (Py - Px - Pz)
periodic law
compound
Magnetic Quantum Number
law of conservation of mass
46. A ratio derived from the equality between two different units that can be used to convert from one unit to the other
accuracy
photon
electronegativity
conversion factor
47. Combination of all the forms of electromagnetic radiation.
orbital
electromagnetic spectrum
photoelectric effect
electronegativity
48. Atoms of the same element that have different masses
hertz
isotopes
gas
cation
49. A measure of the ability of an atom in a chemical compound to attract electrons from another atom in the compound.
conversion factor
electronegativity
law of multiple proportions
chemical
50. Which way it spins. (up or down)
Pauli exclusion principle
molar mass
Spin Quantum Number
atom