Organizing Elements Quiz

What is one method used to organize over 100 elements?

• Alphabetical order

• By color

• By size

• By shape

Which of the following is NOT a way to organize elements?

• By properties

• By mass

• By atomic number

• By taste

What did Dobereiner notice about certain groups of elements?

• They had different properties.

• They were all metals.

• They had similar properties to each other.

• They were all gases.

What term did Dobereiner use to describe groups of three elements with similar properties?

• Triangles

• Triads

• Triplets

• Trilogies

Which of the following is an example of a triad according to Dobereiner?

• H, He, Li

• Ca, Ba, Sr

• Na, Mg, Al

• C, N, O

Who arranged the elements in order of increasing atomic mass and noticed a repeating pattern every eighth element?

• Mendeleev

• Newlands

• Dalton

• Rutherford

What did Newlands call the repeating pattern he observed in the elements?

• Law of Triads

• Law of Periodicity

• Law of Octaves

• Law of Elements

Who published the first periodic table in 1869?

• John Dalton

• Dmitri Mendeleev

• Marie Curie

• Albert Einstein

What did Mendeleev use to organize the periodic table?

• Atomic number

• Increasing mass numbers

• Alphabetical order

• Color of elements

How many elements were in rows 1 and 2 of Mendeleev's periodic table?

• Five

• Seven

• Ten

• Twelve