Chemical Forums

Chemistry Forums for Students => High School Chemistry Forum => Topic started by: hanhduyen03 on October 26, 2021, 10:59:00 PM

Title: AP Chemistry
Post by: hanhduyen03 on October 26, 2021, 10:59:00 PM

What is the difference between the second ionization energy of K and the second ionization energy of Ca? My answer is “K has 19 protons in the nucleus while Ca has 20 protons in its nucleus” and my teacher gave me the feedback “focus on the valence shell. What is the difference between the two elements when it comes to the number of valence electrons?”

Title: Re: AP Chemistry
Post by: Borek on October 27, 2021, 03:00:06 AM

Have you followed their advice?