LT#4 Concept Check_ Periodic Trends

Each column in the periodic table is called a 

• period
• group
• cluster
• unit

Which group of the periodic table is composed of inert (not reactive)  gases?

• alkali metals
• alkaline earth metals
• halogens
• noble gases

Elements which are shiny, conduct electricity and heat are called

• metal
• nonmetal
• metalloid
• nonexistent

Tags

NGSS.HS-PS1-1

The atoms along the staircase are called 

• metals
• nonmetals
• metalloids
• noble gases

Tags

NGSS.HS-PS1-1

What's a valence electron?

• electrons in the second energy level
• electrons in the outermost energy level
• the atomic number
• electrons in the first level

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

In the modern periodic table elements are arranged by:

• atomic mass
• atomic number
• valence electrons
• number of isotopes

Which color on the image of the periodic table corresponds with the halogens.

• red

• black

• blue

• orange

Tags

NGSS.HS-PS1-1

Which color on the image of the periodic table corresponds with the noble gases.

• red

• black

• blue

• orange

Tags

NGSS.HS-PS1-1

Which color on the image of the periodic table corresponds with the transition metals.

• red

• black

• blue

• orange

Tags

NGSS.HS-PS1-1

Mendeleev first ordered the periodic table of elements by increasing

• atomic number

• atomic mass

• atomic symbol

• atomic weight