Atomic Radius And Atomic Number Worksheet (Page 3 of 5) in pdf

Atomic Radius And Atomic Number Worksheet Page 3

On the Ionization Energy versus Atomic Number graph, do the following:

1. NEATLY label the points that show an electron with a valence configuration of ns

2. NEATLY label the points that show an electron with a valence configuration of ns

3. Put a circle around the points that have electrons entering the 3d orbital and the 4d orbital.

4. Draw a vertical line (from the X-axis to the top of the graph) through the points that have a filled

valence level

Questions:

1) What is ionization energy?

2) Each section on the graph represents a _______________on the PT.

3) What is the general trend in ionization energy as you go across a period?

4) List the atomic number of the elements that have the lowest ionization energy in each section of the

graph.

Besides having the lowest ionization energy, what else do they have in common?

5) List the elements that have the highest ionization energies in each section of the

graph.

Besides having the highest ionization energy, what else do they have in common?

In terms of size of the atoms (see the radius graph) the elements that were listed in #4 are

the________________________ of their period. As the size of the atom increases the ionization energy

________________________________.

Locate the points on the graph that correspond to the elements receiving 3d and 4d electrons. What is

the trend in ionization energy in these portions of the graph?

Offer an explanation for this trend (see the radius graph)

What happens to the ionization energy as you go

a. across a period?

b. down a family?

Atomic Radius And Atomic Number Worksheet Page 3