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1. Does the distance between the valence electron(s) and the nucleus change as you move from left to right? 2. Can the differences in the attractive forces shown by the arrows be explained by a change in the distance between the electrons(s) and the nucleus? 3. Can the differences in attractive forces shown by the arrows be explained by a change in the number of protons in the nucleus? Explain.

1. Does the distance between the valence electron(s) and the nucleus change as you move from left to right? 2. Can the differences in the attractive forces shown by the arrows be explained by a change in the distance between the electrons(s) and the nucleus? 3. Can the differences in attractive forces shown by the arrows be explained by a change in the number of protons in the nucleus? Explain.

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Read This! The attractive and repulsive forces in an atom are rather complex. An electron is attracted to the protons in the nucleus, but it is also repelled by the other electrons in the atom. It is important to note however that the attractive force of the nucleus is NOT divided up among the electrons in the atom. Each electron gets approximately the full attractive force of the nucleus (minus the repulsive effects of other electrons). Compare the diagram below to set D in Model 3. Notice the similarity in attractive force. 0.10 nm 0.10 nm approx. 4.60 x 10* (on cach electron) Model 4 – Period 3 Elements Sodium Aluminum Chlorine What do you SEE? What does it MEAN? What do you WONDER? Does the distance between the valence electron(s) and the nucleus change as you move from left to right? Can the differences in the attractive forces shown by the arrows be explained by a change in the distance between the electrons(s) and the nucleus? 3. Can the differences in attractive forces shown by the arrows be explained by a change in the number of protons in the nucleus? Explain. arch 2.
Transcribed Image Text:Read This! The attractive and repulsive forces in an atom are rather complex. An electron is attracted to the protons in the nucleus, but it is also repelled by the other electrons in the atom. It is important to note however that the attractive force of the nucleus is NOT divided up among the electrons in the atom. Each electron gets approximately the full attractive force of the nucleus (minus the repulsive effects of other electrons). Compare the diagram below to set D in Model 3. Notice the similarity in attractive force. 0.10 nm 0.10 nm approx. 4.60 x 10* (on cach electron) Model 4 – Period 3 Elements Sodium Aluminum Chlorine What do you SEE? What does it MEAN? What do you WONDER? Does the distance between the valence electron(s) and the nucleus change as you move from left to right? Can the differences in the attractive forces shown by the arrows be explained by a change in the distance between the electrons(s) and the nucleus? 3. Can the differences in attractive forces shown by the arrows be explained by a change in the number of protons in the nucleus? Explain. arch 2.
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