Organizing the Elements

What is the periodic table?

• a chart of the elements

• the average mass of all the isotopes of an element

True or False: The elements in the current periodic table are arranged in order of atomic mass.

• True

• False

Who created the first periodic table?

• Lothar Mayer

• Dmitri Mendeleev

What is the name of this element?

• Oxygen

• Tin

• Sulfur

• Magnesium

What is the atomic number of this element?

• 8

• 15.999

Tags

NGSS.MS-PS1-1

What is the chemical symbol of this element?

• O

• Ox

• Oy

• Og

What is a row of elements on the periodic table called?

• period

• group

What is a column of elements on the periodic table called?

• period

• group

The elements in a period have the same or similar properties.

• True

• False

The elements in a group have the same or similar properties.

• True

• False