Electron Configuration Basics Quiz

What analogy is used to explain electron shell filling in the video?

• Arranging blocks in a pyramid

• Filling water in a glass

• Stacking books on a shelf

• Filling seats in a movie theater

According to the Bohr model, how many energy shells does an atom have?

• Five

• Seven

• Nine

• Eleven

What is the formula used to determine the maximum number of electrons in a shell?

• 2n^2

• 2n

• n^3

• n^2

How many electrons can the first shell hold according to the formula?

• 4

• 6

• 8

• 2

What is the electron configuration for helium?

• 2-2

• 2

• 2-1

• 1

For lithium, which shell does the third electron occupy?

• Fourth shell

• Second shell

• First shell

• Third shell

How many electrons can fit in the second shell?

• 6

• 4

• 8

• 2

What is the electron configuration for a chlorine ion with a negative 1 charge?

• 2-7-8

• 2-8-8

• 2-8-7

• 2-8-6

How many electrons does an aluminum ion with a 3+ charge have?

• 10

• 16

• 13

• 18

What is the electron configuration for phosphorus with a 3- charge?

• 2-8-5

• 2-8-8

• 2-8-7

• 2-7-8