Organizing Elements Flashcard

Front

What is one method used to organize over 100 elements?

Back

Alphabetical order

Front

Which of the following is NOT a way to organize elements? By properties, By mass, By atomic number, By taste

Back

By taste

Front

What did Dobereiner notice about certain groups of elements?

Back

They had similar properties to each other.

Front

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

Back

Triads

Front

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

Back

Ca, Ba, Sr

Front

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

Back

Newlands

Front

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

Back

Law of Octaves

Front

Who published the first periodic table in 1869?

Back

Dmitri Mendeleev

Front

What did Mendeleev use to organize the periodic table?

Back

Increasing mass numbers

Front

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

Back

Seven