Bohr Diagrams

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

What is the mass number of this atom?

• 1
• 3
• 4
• 7

Tags

NGSS.MS-PS1-1

What group does this element belong to?

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

Tags

NGSS.HS-PS1-1

Carbon-12 has 6 protons and 6 neutrons. How many electrons will orbit the nucleus?

• 12
• 6
• 3
• 18

Tags

NGSS.HS-PS1-1

What is the charge of a neutron?

• Positive
• Negative
• Neutral/no charge

What is the center of the atom called?

• Orbital
• Nucleus
• Proton
• Electron shell

Tags

NGSS.HS-PS1-8

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

Identify the element in the picture

• Boron
• Carbon
• Nitrogen
• Lithium

Tags

NGSS.HS-PS1-1