Chapter 2: The Metric System
What is the base unit for volume?
Liters
What is the name of the element with the symbol Sb?
Antimony
What is the relative mass of an electron and proton?
Electron: 0 (or negligible-too small to count)
Proton: 1 amu
State the number of valence electrons for Argon (Ar).
8 valence electrons
Write the name for Ca3P2.
Calcium phosphide
Perform the following metric–metric conversion.
5.00 dL to mL
500 mL
What is the term for a phase change from liquid to solid?
Freezing
Which element is this?
1s2 2s2 2p6 3s2 3p6 4s2 3d2
Titanium
Vertical columns in the periodic table are referred to by what two terms?
Groups or families
Name the following compound:
FeCl2
Iron (II) chloride
OR
Ferrous chloride
Perform the following metric-English conversion:
6.78 ns to min
1.13*10-10 min
Sodium chloride is an example of a _______________.
Compound
Calculate the average atomic mass for lithium given the following data for its natural isotopes:
6Li:6.015 amu with 6.29% abundance; and 7Li:7.016 amu.
6.95 amu
According to the general trends in the periodic table, which element should have the largest atomic radius?
Francium (Fr)
What is the name for HBr?
Hydrobromic acid
A piece of green jade is a rectangular solid measuring 2.50 cm by 1.25 cm by 3.50 mm. What is the volume in cubic centimeters?
1.09 cm3
Metal or nonmetal?
Has a low melting point.
Nonmetal
Write the electron configuration for Cadmium (Cd).
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10
Write the noble gas configuration for tin (Sn).
[Kr] 5s2 4d10 5p2
What is the formula for chlorous acid?
HClO2(aq)
If an automobile engine is 325-in.3, what is the volume in liters?
5.33 L
Metal or nonmetal?
Can react with metals and nonmetals.
Nonmetals
Given the isotopic masses of iron are 57Fe:56.935 amu and 58Fe:57.933 amu, and the average atomic mass is 57.065 amu, calculate the percent abundance for each isotope.
Fe-57: 86.974%
Fe-58: 13.026%
Write the noble gas configuration for an ion of S2-
[Ar]
Name the following compound:
Sn3(PO4)4
Tin (IV) phosphate