Chapter 11- The Periodic Table Review

Approximately how many elements on the periodic table are metals?

• half of the periodic table

• one-third of the periodic table

• three-fourths of the periodic table

• all of the periodic table

When Mendeleev developed the first periodic table, there were approximately ________ known elements

• 10

• 60

• 100

• 160

What is meant by periodic in Periodic Table?

• the table has repeated cycles

• the elements occur more than once

• the table can be changed as needed

• the table is only good for so long

Which of the following is NOT on an element key?

• atomic number

• atomic mass

• symbol

• density

A single horizontal portion of the periodic table is called a ________

• a class

• a method

• a group

• a period

In the modern periodic table, elements are arranged according to increasing _____________

• atomic mass

• atomic number

• date of discovery

• electrical activity

The elements in the second column from the left edge of the periodic table are the _________.

• transition elements

• alkali metals

• alkaline earth metals

• lanthanide and actinide series

The large group of elements in the main part of the periodic table are the ___________.

• alkali metals

• alkaline earth metals

• transition elements

• lanthanide and actinide series

At room temperature, most of the metals are

• soft

• malleable

• liquids

• solids

Which of the following is NOT one of the main elements in the human body?

• lead

• oxygen

• carbon

• hydrogen