The Periodic Table & Bohr Models

This atom has an atomic number of ​ (a)   .

This atom has a mass number of ​ (b)   .

This atom has an atomic mass of ​ (c)   .

This atom has ​ (d)   valence electrons.

• 8
• 16
• 15.999
• 6
• 24
• 2
• 12
• 10
• 3

Tags

NGSS.MS-PS1-1

Match the following

• potassium

• 
• lithium

• 
• magnesium

• 
• titanium

• 
• sodium

• 

Tags

NGSS.MS-PS1-1

Which side of the periodic table are the nonmetals located?

Which side of the periodic table are the metals located?

Categorize the options into the right categories

Groups:

(a) Metals

,

(b) Nonmetals

• argon

• helium

• strontium

• chlorine

• carbon

• nitrogen

• potassium

• magnesium

• silver

• copper

Tags

NGSS.MS-PS1-1

Which group is the Alkali Metals?

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which group is the Alkaline Earth Metals?

Which group is the Halogens?

Which group is the Noble Gases?

Match the following

• 8 valence and completely unreactive

• Halogens

• 1 valence electron and very reactive

• Alkali Metals

• 2 valence electrons and very reactive

• Alkaline Earth Metals

• 7 valence electrons & highly reactive

• Noble Gases