Question

directions: using your computer, tablet or mobile device, navigate to the website: www.pldsc.com. you will interact with this periodic table to find the answers to the questions below. make sure the \wikipedia\ tab is selected in order to answer the following questions: 1. the vertical columns on the periodic table are called groups, how many groups are there on the periodic table? 2. the horizontal rows on the periodic table are called periods, how many periods are there on the periodic table? 3. using the group and period numbers, identify the elements that are located in each of the following location. a. the element in group 10 and period 5 = b. the element in group 15 and period 4 = c. the element in group 2 and period 4 = d. the element in group 2 and period 3 = e. the element in group 18 and period 6= f. the element in group 1 and period 7 = 4. are most of the elements on the periodic table classified as a metal or a non - metal? 5. are the non - metal elements located on the left or right side of the periodic table? elements can also be classified by family, use the color coding at the top of the page to help identify the family names and their element members. 6. how many elements belong to the alkali metal family? list the member elements by their symbol. 7. click on the group number for the alkali metals family at the top of the table. answer the following about the alkali metals: a. what are 3 similar properties of these elements? b. where are these found naturally? c. what is a common substance that alkali metals react vigorously with?

Explanation:

Step1: Recall periodic - table structure

The vertical columns are groups and horizontal rows are periods. There are 18 groups and 7 periods in the standard periodic table.

Step2: Identify elements by group and period

a. The element in group 10 and period 5 is Palladium (Pd).
b. The element in group 15 and period 4 is Arsenic (As).
c. The element in group 2 and period 4 is Calcium (Ca).
d. The element in group 2 and period 3 is Magnesium (Mg).
e. The element in group 18 and period 6 is Radon (Rn).
f. The element in group 1 and period 7 is Francium (Fr).

Step3: Answer classification questions

Most elements on the periodic table are metals. Non - metal elements are located on the right side of the periodic table.

Step4: Identify alkali metal family

There are 6 elements in the alkali metal family: Lithium (Li), Sodium (Na), Potassium (K), Rubidium (Rb), Cesium (Cs), Francium (Fr).

Step5: Answer alkali - metal properties questions

a. Three similar properties of alkali metals: They are soft, highly reactive, and have low melting points.
b. Alkali metals are not found naturally in their elemental form but as compounds, often in salts.
c. Alkali metals react vigorously with water.

Answer:

1. 18
2. 7
3. a. Palladium (Pd)

b. Arsenic (As)
c. Calcium (Ca)
d. Magnesium (Mg)
e. Radon (Rn)
f. Francium (Fr)

1. Metal
2. Right side
3. 6; Lithium (Li), Sodium (Na), Potassium (K), Rubidium (Rb), Cesium (Cs), Francium (Fr)
4. a. Soft, highly reactive, low melting points

b. Not found naturally in elemental form, as compounds in salts
c. Water