History and Organization of the Periodic Table Test

What did Dmitri Mendeleev notice about certain groups of elements?

• They had similar properties

• They were all metals

• They were all gases

• They were all radioactive

What was the main idea behind Mendeleev’s periodic table?

• Elements could be periodically arranged in sets with repeating patterns within the order of increasing atomic mass

• Elements could be arranged alphabetically

• Elements could be grouped by color

• Elements could be arranged by melting point

How was Mendeleev able to predict the placement of future elements?

• By observing repeating patterns in the properties of elements

• By guessing randomly

• By using a computer

• By following alphabetical order

What did Henry Moseley discover that changed the organization of the periodic table?

• A way to quantitatively find the atomic number of an element

• A way to make gold from lead

• A method to measure temperature

• A new type of element

What does the Periodic Law state?

• Patterns of properties within a period repeat as you move from one period to the next

• All elements are metals

• Elements are arranged by color

• Elements are grouped by size

What is true about the properties of elements to the left or right of each other on the periodic table?

• They have different properties

• They are always the same element

• They are always gases

• They are always radioactive

What does the periodic table compile?

• All the discovered elements

• All the discovered compounds

• All the discovered molecules

• All the discovered atoms

What property do metals generally have?

• Good conductors of heat/electricity, high luster, ductile/malleable

• Poor conductors of heat/electricity, brittle

• Properties vary more among them

• Behavior depends on conditions

Which group of elements displays a wide range of chemical and physical properties?

• Representative Elements

• Alkali Metals

• Transition Metals

• Nonmetals

Which group do alkaline earth metals belong to?

• Group 2A

• Group 1A

• Group 7A

• Group 3A