NS term 2 Periodic tables

Each column in the periodic table is called a _________ .

• period
• group
• cluster
• unit

Mendeleev arranged the elements by their ________________

• alphabetical

• density

• melting point

• atomic mass

The horizontal rows on the periodic table are called

• groups

• families

• periods

• atomic numbers

In each square of the periodic table, the number at the bottom is the:

• atomic number

• atomic mass

• chemical symbol

• element name

The number at the top of each square on the periodic table is the ...

• atomic number
• atomic mass
• Chemical Symbol
• Element Name

On the periodic table, elements on the right side of the "stair-step" line are classified as:

• nonmetals

• metals

• gases

• Halogens

Most of the elements on the periodic table are classified as _____.

• Metals
• Nonmetals
• Metalloids
• Periods

Who invented the Periodic Table?

• Mendeleev

• Bohr

• Lewis

• Democritus

Mendeleev's genius was his ability to

• predict elements that were not discovered yet

• organize elements by their mass

• had an element named after himself

• organize elements by properties

Elements in the same group have __________

• Similar Properties

• Same number of shells

• Similar Mass