Periodic Table

• Periods
• Groups

• Periods
• Groups

• energy levels
• valence electrons
• protons
• neutrons

Tags

NGSS.HS-PS1-1

• Same group
• Same period

• Group 1
• Group 17
• Group 18
• Group 2

Tags

NGSS.MS-PS1-2

Each column in the periodic table is called a 

• period
• group
• cluster
• unit

The atomic number tells you what?

• number of electrons
• number of protons
• number of neutrons
• both electrons and protons in an atom.

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

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

How many neutrons are in a Gold atom?

• 79
• 196
• 118
• 275

Tags

NGSS.MS-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