Bohr Models and Lewis Structures

What atom does this Bohr Model represent?

Tags

NGSS.MS-PS1-1

What is the mass number?

• Number of protons plus neutrons
• Number of protons plus electrons
• Number of neutrons plus electrons

An element with five valence electrons is

• phosphorus
• oxygen
• beryllium
• rubidium

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

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

?

• Helium
• Hydrogen
• Argon
• Silver

Tags

NGSS.MS-PS1-1

How many valence (outer) electrons does an Oxygen atom have?

• 2

• 6

• 8

• 16

Tags

NGSS.MS-PS1-1

What is the atomic number of this element?

• 17

• 18

• 35

• 35.453

Tags

NGSS.MS-PS1-1

What is the mass number of this atom of Chlorine?

• 17

• 18

• 35

• 35.453

Tags

NGSS.MS-PS1-1

Which element is this?

• Calcium

• Chlorine

• Silicon

• Potassium

Tags

NGSS.MS-PS1-1

What element is this?

• Nitrogen

• Chlorine

• Argon

• Phosphorous

Tags

NGSS.MS-PS1-1