Atomic Radius And Atomic Number Worksheet (Page 2 of 5) in pdf

Atomic Radius And Atomic Number Worksheet Page 2

On the Radius 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) How many sections have you divided the graph into? _____________________

2) On the Periodic Table, the first 54 elements are found in 5 horizontal rows called ___________ .

What does each section on your graph represent?

3) What is the general trend in atomic radius within each section of the graph (more than one word

answer)?

As you increase in atomic number across a period on the PT, what happens to the size of atoms?

Are electrons being added to higher quantum levels as you go from left to right across a period? Explain

your answer.

Using your knowledge of positive and negative charges, what is causing the size difference across a period?

4) List the atomic numbers of the largest atom of each section of the graph (exclude section one)

On the PT, all of the above atoms are found in _____________________________________

What do they all have in common (besides being the largest)?

5) List the atomic numbers of the smallest atom in each section of the graph (exclude section one)

On the PT, all of the above are found in __________________________________________

What do they all have in common (besides being the smallest)?

6) Looking at your answers to #4 and #5, as you go down a family of elements on the PT, what can you say

about the size of the atoms? Explain why.

Atomic Radius And Atomic Number Worksheet Page 2