1. Define a Family.
2. What is a period?
3. What is the symbol for the following elements?
a. Magnesium
b. Potassium
c. Iron
d. Copper
e. Aluminum
4. What are the names of the following elements?
a. C
b. Cl
c. Au
d. Sr
5. What period are the following element in?
a. He
b. Ge
c. Rb
d. I
6. What group are the following elements?
a. Sulfur
b. Ca
c. Iodine
d. Fe
7. Give me an atom with the following characteristics.
a. Halogen
b. Alkali metal
c. Nobel gas
d. Transition metal
e. Nonmetal

Classify this reaction: 2al+n2-> aln.

|using the periodic tablewarm-upuse the periodic table in the tools bar to answer the following questions.what elemental classification does oxygen belongto? done

Percent ionization for a weak acid (ha) is determined by the following formula: percent ionization=[ha] ionized[ha] initial×100%for strong acids, ionization is nearly complete (100%) at most concentrations. however, for weak acids, the percent ionization changes significantly with concentration. the more diluted the acid is, the greater percent ionization.a certain weak acid, ha, has a ka value of 9.4×10? 7.part acalculate the percent ionization of ha in a 0.10 m solution.part bcalculate the percent ionization of ha in a 0.010 m solution