Periodic Table

Which statement best describes the arrangement of elements in the periodic table?

• Elements are arranged in decreasing atomic mass from left to right.

• Elements are arranged in decreasing atomic number from left to right.

• Elements are arranged in increasing atomic number from left to right

• Elements are arranged in increasing number of neutrons from left to right.

When elements fall under the same column, this means they belong to the same ______.

• group

• period

The image below shows how information about a specific element is represented on the periodic table.

What information does the symbol “C” give about the element?

• atomic number

• atomic mass

• density

• element's symbol

The image below shows how information about a specific element is represented on the periodic table.

What information does the symbol “6” give about the element?

• atomic number

• atomic mass

• density

• element's symbol

Atomic number represents which subatomic particle?

• electrons

• protons

• neutrons