WorksheetsPERIODIC TABLE @Crash Course Chemistry Quiz
Total questions: 1
Worksheet time: 7mins
Who is the main focus of the story in the text?
D. De Chancourtois
C. A French scientist
B. Hank Green
A. Dmitri Mendeleev
What is the periodic table of elements?
D. A religious text
C. A map of the universe
B. A list of chemical reactions
A. A catalog of different types of atoms
What did Dmitri Mendeleev do to organize the elements?
D. Sorted them by melting point
C. Sorted them by size
B. Sorted them by atomic weight
A. Sorted them by color
What did Mendeleev realize about the periodicity of elements?
A. It was random and unpredictable
B. It was based on atomic weight
C. It was based on reactivity
D. It was based on color
What type of elements are the alkali metals?
A. Non-reactive
D. Noble gases
C. Extremely reactive
B. Gases
What is the main characteristic of transition metals?
A. Extremely reactive
B. Good conductors of electricity
D. Form negative ions
C. Nonmetals
What did Mendeleev predict about the missing elements in the periodic table?
A. They would never be discovered
B. They would have unique properties
C. They would be non-reactive
D. They would be similar to existing elements
What was the reaction of the scientific community to Mendeleev's theories?
A. They were skeptical
B. They were indifferent
C. They were excited
D. They were hostile
What physical phenomenon explains the periodicity of elements?
A. Protons
B. Neutrons
C. Electrons
D. Photons
What was a proposed improvement to the current periodic table?
D. Removing the noble gases
C. Making it a 3D model
B. Changing the order of elements
A. Adding more columns
