PS 5.1 Formative

In 1789, he grouped the known elements into categories he called metals, non-metals, gases, and earths.

• Lavoisier

• Mendeleev

• Einstein

• Thomson

Mendeleev's strategy for organizing the elements was based on the card game solitaire.

• true

• false

Mendeleev arranged the elements into rows in order of increasing _____ so that elements with similar properties were in the same column.

• mass

• electrons

• density

• reactivity

A ________ is an arrangement of elements in columns, based on a set of properties that repeat from row to row.

Mendeleev was the first to arrange elements in a periodic table.

• true

• false

The close match between Mendeleev's predictions and the actual properties of new elements showed how useful his periodic table could be.

• true

• false

Mendeleev left spaces in his periodic table for elements that hadn't been discovered yet.

• true

• false

Mendeleev used the properties of elements located near the blank spaces in his table to predict properties for undiscovered elements.

• true

• false

_____ arranged the elements into rows in order of increasing mass so that elements with similar properties were in the same column.

• Lavoisier

• Newton

• Mendeleev

• Rutherford

The first elements to be identified were mainly _____, metals, nonmetals, and earths.

Tags

NGSS.MS-PS1-1