Question

1. what is the relationship between the thickness of the book and the ability of the magnet to hold on to and attract paper clips? they both have paper in between the magnet and the paper clip gizmo warm - up just as the thickness of a book changes how strongly a magnet attracts a paper clip, the size of an atom determines how strongly the nucleus attracts electrons. in the periodic trends gizmo, you will explore this relationship and how it affects the properties of different elements. the atomic radius is a measure of the size of the electron cloud, or the region where electrons can be found. to begin, check that h (hydrogen) is selected in group 1 on the left. turn on show ruler. to measure the radius, drag one end of the ruler to the proton in the nucleus and the other end to the electron. click save radius to record the value. 1. what is the radius of hydrogen? 53 notice that the radius is measured in picometers (pm). a picometer is one trillionth of a meter. 2. on the right side of the gizmo, select li. connect the right side of the ruler to the outermost electron, or valence electron. what is the radius of lithium? 167

Explanation:

Step1: Identify question requirements

The questions ask for atomic - radii values which are given directly in the text.

Step2: Locate hydrogen radius

According to the text, the radius of hydrogen is 53 pm.

Step3: Locate lithium radius

According to the text, the radius of lithium is 167 pm.

Step4: Answer relationship question

As the thickness of the book (or in the atomic - scale, the size of the electron cloud) increases, the ability of the magnet (or the nucleus) to attract the paper clip (or electrons) decreases.

Answer:

1. The radius of hydrogen is 53 pm.
2. The radius of lithium is 167 pm.
3. As the thickness of the book increases, the ability of the magnet to hold on to and attract paper clips decreases; in an atomic - scale analogy, as the size of the atom increases, the ability of the nucleus to attract electrons decreases.