Bohr Diagrams and Lewis dot

What element is this?

• Helium
• Hydrogen
• Argon
• Silver

Tags

NGSS.HS-PS1-1

How many electrons does Si contain? (click to see image)

• 14
• 28
• 2
• None of these

Tags

NGSS.HS-PS1-1

How many electrons does potassium K contain? (click to see image)

• 19
• 39
• 20
• 40

Tags

NGSS.HS-PS1-1

What element is represented in this Bohr Model? 

• Carbon
• Hydrogen
• Aluminum
• Lithium

Tags

NGSS.HS-PS1-1

?

• Lithium
• Boron
• Carbon
• Neon

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

?

• Helium
• Oxygen
• Sodium
• Phosphorous

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

?

• Beryllium
• Boron
• Barium
• Bromine

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many protons does this isotope of titanium have?

• 48
• 22
• 26
• 70

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

Which of the following is the correct Bohr Diagram for a neutral atom of Carbon in its ground state?

• 
• 
• 
• 

Tags

NGSS.MS-PS1-1