Modeling Electron Configurations.

The electron configuration of an atom is 1s²2s²2p⁶.  The number of electrons in the atom is 

• 3
• 6
• 8
• 10

How many atomic orbitals are there in the p sublevel?

• 2
• 3
• 4
• 5

How many orbitals are there in the d sublevel?

• 1

• 3

• 5

• 7

What is the maximum number of electrons that an orbital can have?

• 1 electron
• 2 electrons
• 3 electrons
• 4 electrons

How many electrons can the s sublevel hold?

• 14
• 10
• 2
• 6

How many electrons can the f sublevel hold?

• 14

• 10

• 2

• 6

Which are the four energy sublevels?

• s,p,d,f

• a,b,c,d

• s,t,e,p

• d,r,o,f

Within an energy level, which sublevel is the lowest in energy?

• s

• f

• d

• p

What is incorrect about this orbital diagram?

• Both arrows in the 1st 2p orbital should be pointing up

• There is nothing incorrect with this diagram

• In the 2p energy level, each of the arrow should be in separate orbital, with each pointing upwards.

• All the arrows should be pointing up.

The electron-configuration notation for sodium (Na) is 1s² 2s² 2p⁶ 3s¹. Which of these options is the correct orbital notation for Sodium?

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