What element does this Bohr model represent?

• lithium
• carbon
• aluminum
• oxygen

Tags

NGSS.MS-PS1-1

What element is this?

• Helium
• Hydrogen
• Argon
• Silver

Tags

NGSS.MS-PS1-1

What element is represented in this Bohr Model? 

• Carbon
• Hydrogen
• Aluminum
• Lithium

Tags

NGSS.MS-PS1-1

Which element does this model represent?

• neon
• Hydrogen
• Fluorine
• bromine

Tags

NGSS.MS-PS1-1

Which element does this model represent?

• Beryllium
• Boron
• Barium
• Bromine

Tags

NGSS.MS-PS1-1

What is the mass number of this atom?

• 1
• 3
• 4
• 7

Tags

NGSS.MS-PS1-1

What is the atomic number of this atom?

• 2
• 4
• 6
• none of the above

Tags

NGSS.MS-PS1-1

To which group does this element belong?

• Group 1: Alkali metals
• Group 18: Noble Gases
• Group 2: Alkaline-Earth Metals
• Group 17: Halogens

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

An atom of an element has 4 energy levels and 3 valence electrons.  What is this element?

• gallium
• indium
• germanium
• fluorine

Tags

NGSS.HS-PS1-1

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

• 19
• 39
• 20
• 40

Tags

NGSS.MS-PS1-1