Electron Shells

What is the maximum capacity of the first electron shell?

• 2
• 18
• 8
• 32

Which element is in the third period?

• Chlorine
• Sulfur
• Magnesium
• Sodium

What is the arrangement of electrons in phosphorous?

• 2, 8, 4
• 2, 8, 5
• 2, 8, 6
• 2, 8, 7

How does the electron shell arrangement of magnesium compare to that of aluminum?

• They both have 2 electrons in the first shell
• They both have 8 electrons in the second shell
• They both have 2 electrons in the outer shell
• They both have 3 electrons in the third shell

Tags

NGSS.MS-PS1-1

What is the atomic number of sodium?

• 11
• 2
• 18
• 8

What is the arrangement of electrons in silicon?

• 2, 8, 7
• 2, 8, 5
• 2, 8, 4
• 2, 8, 6

Tags

NGSS.HS-PS1-1

What is the maximum capacity of the second electron shell?

• 18
• 2
• 32
• 8

How many electrons does argon need to fill its outer shell?

• 18
• 8
• 2
• 32

How many electrons does phosphorous need to fill its outer shell?

• 8
• 2
• 5
• 13

Which element has an atomic number of 16?

• Sodium
• Sulfur
• Magnesium
• Chlorine