History of Periodic Table

Front

What was Dmitri Mendeleev's greatest contribution to the history of the periodic table?

Back

He predicted the existence (and properties) of new elements.

Front

Who arranged the first periodic table?

Back

Mendeleev.

Front

Mendeleev classified elements based on not only atomic mass but what else?

Back

Chemical & physical properties.

Front

What element will have the most similar physical and chemical properties to Nitrogen (N)?

Back

Phosphorous (P).

Front

Why were there blank spaces left in Mendeleev's periodic table?

Back

Undiscovered elements not yet known.

Front

What is the periodic law?

Back

The properties of elements are a periodic function of their atomic numbers.

Front

What did Mendeleev use to predict the properties of undiscovered elements?

Back

Patterns in the properties of known elements.

Front

What is the significance of atomic number in the periodic table?

Back

It determines the position of an element in the periodic table.

Front

How did Mendeleev's periodic table differ from modern periodic tables?

Back

Mendeleev arranged elements by atomic mass, while modern tables use atomic number.

Front

What are groups in the periodic table?

Back

Columns of elements that have similar chemical properties.