Electron Configuration

What atom matches this electron configuration?

1s²2s²2p⁶3s²

• Neon

• Potassium

• Aluminum

• Magnesium

What is the electron configuration for a Sulfur atom?

• 1s²2s²2p⁶3p⁶

• 1s²2s²2p⁶3s²3p⁴

• 1s²2s²2p⁶3s²3p⁶

• 1s²2s²

What atom matches this electron configuration?

1s²2s²2p⁶3s³3p⁶4s²3d¹⁰4p⁶5s²4d¹⁰5p⁶6s²4f¹⁴5d²

• Mercury

• Thallium

• Platinum

• Hafnium

Which of the following atoms is the smallest in size?

• N

• I

• Fr

• S

What are the sublevels that make up the n=3 energy level?

• s

• s, p, d, f

• s, p ,f

• s, p, d

How many atomic orbitals are there in the d sublevel?

• 1

• 7

• 3

• 4

• 5

How many atomic orbitals are there in the p sublevel?

• 2

• 3

• 4

• 5

According to the __________________________________,electrons fill the _________________________energy levels and sublevels first.

(a)  

According to the (a)   , which sublevel should start filling with electrons, after 5s?

The second energy level (n=2) contains a total of 5 electrons...how many more electrons can fit in the 2nd energy level?

(a)