Unit 03: Periodic Table

Who believed everything on earth was made up of elements?

• Aristotle

• Dmitri Mendeleev

• Sir William Ramsay

• Henry Mosely

Who noticed that groups of elements had similar properties and began to arrange them by increasing atomic mass?

• Aristotle

• Dmitri Mendeleev

• Sir William Ramsay

• Henry Mosely

Who was responsible for categorizing the noble gases?

• Aristotle

• Dmitri Mendeleev

• Sir William Ramsay

• Henry Mosely

Who discovered a way to quantitatively find the atomic number of an element and arranged elements by increasing atomic number?

• Aristotle

• Dmitri Mendeleev

• Sir William Ramsay

• Henry Mosely

The fundamental building blocks that make up all things that have mass and take up space are called ______.

• Elements

• Matter

• Legos

• Atoms

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

______ are the columns of the periodic table.

• Groups

• Periods

• Elements

• Atoms

______ are the rows of the periodic table.

• Groups

• Periods

• Elements

• Atoms

Elements within a _____ have similar properties and reactivity.

• Group

• Period

Which category of elements are generally good conductors, have a high luster, and are ductile/malleable?

• Metals

• Nonmetals

• Metalloids

Which category of elements have chemical and physical properties that vary depending on conditions?

• Metals

• Nonmetals

• Metalloids