Electron Shells

How many electrons can be in the 2nd energy level hold?

• 1

• 2

• 4

• 8

How many electrons does the first shell hold?

• 1

• 2

• 4

• 8

What is the electron configuration of sodium?

• 2.8
• 2.8.2
• 2.8.1
• 11

Tags

NGSS.HS-PS1-1

Which element has an electron configuration of 2.5?

• Oxygen
• Nitrogen
• Phosphorus
• Carbon

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NGSS.HS-PS1-1

Which element has an electron configuration of 2.8.8?

• Lead
• Flourine
• Neon
• Argon

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NGSS.HS-PS1-1

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

• 14
• 28
• 2
• 4

Tags

NGSS.HS-PS1-1

Where is Calcium located on the periodic table?

• Group 4, period 2

• Group 2, period 4

• Group 7, period 2

• Group 2, period 7

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NGSS.HS-PS1-1

Valence Electrons are the electrons located where?

• The outer shell of an atom

• The inner shell of an atom

• The nucleus of an atom

• In all of the shells of an atom

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many valence electrons are in the atom shown in the picture?

• 2

• 3

• 5

Tags

NGSS.HS-PS1-1

Based on the number of shells and valence electrons, which element is pictured?

• Nitrogen

• Indium

• Arsenic

• Phosphorous

Tags

NGSS.HS-PS1-1