Periodic Table & Reactivity

Columns on the periodic table are called ______________.

• groups

• lines

• periods

• rules

Rows on the periodic table are called ______________.

• groups

• lines

• periods

• rules

An atom has 18 protons and 8 valence electrons. Which statement would best identify this element?

• The element is "happy" or stable because its outer energy level is filled.

• The element has an atomic mass of 18.

• The element is highly reactive with eight electrons in its outer shell.

• The element is a metal.

Tags

NGSS.MS-PS1-1

Determine which atom is being described here: Shiny, has the properties of both metals and nonmetals, and has three valence electrons.

• Tin (Sn)

• Boron (B)

• Germanium (Ge)

• Antimony (Sb)

Tags

NGSS.MS-PS1-1

Which group is the most stable?

• 17

• 1

• 2

• 18

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many valence electrons makes most atoms stable (nonreactive)?

• 2

• 8

• 1

• 4

On the periodic table, reactivity increases as you move ______________.

• from right to left

• from left to right

Poor conductor of heat and electricity is a property of ___________.

• metals

• nonmetals

• metalloids

Francium is the most reactive element on the periodic table.

• True

• False

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Select the phrase that identifies where METALS are found on the periodic table

• on the zig-zag line

• on the right of the zig-zag line

• on the left of the zig-zag line

• on the left and right sides of the zig-zag line