CHAPTER 5: ELECTRONIC CONFIGURATION

Write the electronic configuration for sodium Na (Z=11)

• 1s² 2s² 2p⁶

• 1s² 2s² 2p⁶ 3s²

• 1s² 2s² 2p⁶ 3s¹

• 1s² 2s² 2p⁶ 3s² 3p⁴

^{State the valence electronic configuration for Mg (Z=12)}

• 3s²

• 3s² 3p¹

• 3s² 3p³

• 3s² 3p⁴

Determine the element that has valence electron 3s^23p¹

• Na

• Al

• Cl

• Mg

Which of the orbital is call 'dumbell shaped'

• s

• p

• d

• f

Write the set quantum number for 3p.

• (3, 0, 0, +1/2)

• (3, 1, 0, +1/2)

• (3, 2, 0, +1/2)

• (3, 0, 1, +1/2)

What is the symbol for angular quantum number?

• n

• l

• m

• s

How many electrons if l=1 for electronic configuration of Mg (Z=12)

• 12

• 6

• 3

• 2

Electron must be arrange from lowest energy to highest energy.

State the rule/principle?

• Hund's Rule

• Pauli Exclusion Principle

• Aufbau Principle

• Zuhaizi Principle

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

• 14
• 28
• 2
• 4

Tags

NGSS.HS-PS1-1

The atomic number tells you...

• the number of protons

• the number of neutrons

• the number of electrons