Lesson 5.7 Ionization Energy and Effective Nuclear Charge

Last updated 7 months ago
20 questions
Note from the author:
Read the article first and then do the questions
Read the article first and then do the questions
Required
1

What is a trend in science?

Required
1

What is ionization energy?

Required
1

What type of electron is removed during ionization?

Required
1

A group is

Required
1

You can use the periodic table to figure out the number of core electrons for the first 56 element by

Required
1

The distance between the nucleus and the valence electrons is larger in potassium because

Required
1

Coulombic attraction is stronger when the proton and the electron are closer.

Required
1

Coulombic attraction between the valence electron and the nucleus depends in potassium is reduced because

Required
1

The shield effect refers to

Required
1

The effective nuclear charge of sulfur is

Required
1

The effective nuclear charge of calcium is

Required
1

Why does the shield effect increase as atoms get larger?

Required
1

Why does shielding not increase across a period?

Required
1

Which element has the highest effective charge nuclear charge in period 2?

Required
1

Which element in period 2 is most likely to be found as a positive ion?

Required
1

Which element in period 2 is most likely to be found as a negative ion?

Use the picture below to answer the following questions

If you want to see the image fill screen, you can open the link https://www.rsc.org/periodic-table/trends
and click on first ionisation energy in the panel that says "select a trend to display"

Yes. They spell ionization as ionisation. It's because the website is British.
Required
1

Which element has the highest ionization energy?

Required
1

Which group of elements is always found as positive elements. Use evidence from the image to explain your answer!

Required
1

Which group of elements is the group that is always found as negative ions? When thinking about your answer be sure to consider that the noble gases (He, Ne, ..... Radon) do not make ions. Use evidence from the image to justify your answer!

Required
1

The rules that the article discusses are called trends because there are elements that don't follow the pattern that ionization energy increases as go from left to right and decreases and you move down a column. Look carefully and find at least two elements that violate the rules. What are the elements and where are they in the periodic table?