Exploring the Electron Configuration of Bromide Ion

This video tutorial explains how to write the electron configuration for the bromide ion (Br-). It begins by detailing the electron configuration for neutral bromine, emphasizing the importance of understanding the atomic number and electron count. The tutorial then provides a step-by-step guide to writing the electron configuration for bromine, using the periodic table and orbital charts. Finally, it explains how to adjust this configuration to account for the extra electron in the bromide ion, resulting in the final configuration for Br-. The video concludes with a note on the order of orbitals and their energy levels.

What is the main objective of this video?

• To explain the periodic table

• To compare different elements

• To discuss the properties of bromine

• To write the electron configuration for Br-

What does it mean when bromine is described as neutral?

• It has a positive charge

• It has a negative charge

• The number of protons equals the number of electrons

• It has no electrons

How many electrons does neutral bromine have?

• 35

• 37

• 36

• 34

Tags

NGSS.HS-PS1-1

Which orbital do we start with when writing the electron configuration for bromine?

• 1s

• 2p

• 2s

• 3d

How many electrons can the 'p' orbital hold?

• 8

• 2

• 6

• 4

What is the electron configuration for the 3d orbital in neutral bromine?

• 3d10

• 3d8

• 3d6

• 3d5

How many electrons are in the 4p orbital for neutral bromine?

• 4

• 7

• 5

• 6

Tags

NGSS.HS-PS1-1

What happens to bromine when it becomes a bromide ion (Br-)?

• It gains an electron

• It loses an electron

• It loses a proton

• It gains a proton

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the electron configuration for the 4p orbital in Br-?

• 4p6

• 4p5

• 4p7

• 4p4

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which orbital comes before the 3d orbital in the electron configuration?

• 3p

• 4p

• 2p

• 4s