PT Trend for Acidity Lesson Slides: 5 Slides

5 Slides • 3 Questions

Another Periodic Table Trend to Remember: Acidity

Acidity increases down and to the right.

Here's why!

As electronegativity increases, acidity increases.

Remember polarity?
More electronegative atoms cause a greater dipole by pulling the electrons towards them.
This makes it much easier for a hydrogen to be pulled off!

As bond strength decreases, acidity increases.

The weaker the bond between an atom and it's hydrogen, the easier it is to pull the hydrogen off.

Multiple Choice

Which of these is the strongest acid?

HCl

HBr

H₂Se

Multiple Choice

Which of these is the weakest acid?

H₂Te

H₂Se

H₂Po

H₂S

Multiple Choice

Which of these would have the weakest conjugate base?

H₃P

HAt

HCl

H₃As

Another Periodic Table Trend to Remember: Acidity

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