Periodic Table

The atoms along the staircase are called 

• metals

• nonmetals

• metalloids

• noble gases

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.MS-PS1-1

one or two letters that represent the name of an element

• element name

• element symbol

• atomic number

• atomic mass

This class of elements are sometimes called "semiconductors."

• Metals

• Nonmetals

• Metalloids

• Groups

Tags

NGSS.MS-PS1-1

What does the 1.00794 stand for?

• Hydrogen

• atomic number

• atomic mass

• atomic explosion

Tags

NGSS.MS-PS1-1

The vertical (up and down) columns in the Periodic Table are called

• groups

• towers

• periods

• atomic numbers

What does the 6 represent?

• atomic mass

• atomic number

• element name

• chemical symbol 

The horizontal (side to side) rows in the Periodic Table are called

• groups

• families

• periods

• atomic numbers

Which item on this element square is the chemical symbol?

• Copper

• 29

• Cu

• 63.546

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

• atomic number

• atomic mass

• Chemical Symbol

• Element Name

Tags

NGSS.MS-PS1-1