Student drawings should show the nucleus in the center with a cloud surrounding the nucleus. Learning Objectives Students will be able to: Which you go across the table from left to right? The cumulative effect of millions of hydrogen bonds effectively holds the two strands of DNA together. When have a lot of carbon in them. They rejoin to form a salt crystal. What happens to the size of an atom asforms of other elements.

Predict which will have the higher boiling point: What is an orbital? This has to do with their ability to attract one another. According to your everyday experience, which would meet the definition of “solution” given above, after they are allowed to settle? Have students analyze what happens to salt, sugar, and benzene in water versus what happens to these substances in oil. Then sketch a diagram that depicts your hypothesis.

There are three orbitals — 1s, 2s, and 2p.

10.1: Intermolecular Forces

Based on the above simulation, give a molecular reason for why a solvent reaches saturation. The number of protons must be the same if it is the same element. Inter molecular forces are the attractions between molecules, which determine many of the physical properties of a substance.

sam homework questions intermolecular attractions

Add this document to saved. According to intfrmolecular everyday experience, which would meet the definition of “solution” given above, questiins they are allowed to settle? Under appropriate conditions, the attractions between all gas molecules will cause them to form liquids or solids. In a solution, on the other hand, two substances are so well mixed that the concentration of each substance is the same everywhere.


Which of the following forms intermolecular attractions? The physical properties of condensed matter liquids and solids can be explained in terms of the kinetic molecular theory.

SAM Teachers Guide Solubility – RI

The size of the atoms decrease across a row until the orbital is filled and then there is an increase in size as you jump to the next row. Use the images above to explain your answer. As was the case for gaseous substances, the kinetic molecular theory attractins be used to explain the behavior of solids and liquids.

The higher normal boiling point of HCl K compared to F 2 85 K is a reflection of the greater strength of dipole-dipole attractions between HCl molecules, compared to the intwrmolecular between nonpolar F 2 molecules. If you had to bet on where you are mostlikely to find an electron at any particularpoint in time, where would it be? Many people think of the Bohr Model when they picture an atom. IMFs are the various forces of attraction that may exist between the atoms and molecules of a substance due to electrostatic phenomena, as will be detailed in this module.

Polar solutes are more likely to dissolve in polar solvents. Create your own flipbook. CO and N 2 are both diatomic molecules with masses of about 28 amu, so they experience similar London dispersion forces. An atom is NOT an ion when: The intermolecular attractions between the ions are what make the salt crystal fairly stable.


They are still solid within the solution because the solution is saturated. In the HCl molecule, the more electronegative Cl atom bears the partial negative charge, whereas the less electronegative H atom bears the partial positive charge.

sam homework questions intermolecular attractions

Gaseous butane is compressed within the storage compartment of a disposable lighter, inermolecular in its condensation to the liquid state. Solution CO and N 2 are both diatomic molecules with masses of about 28 amu, so they experience similar London dispersion forces. The effect of increasingly stronger dispersion forces dominates that of increasingly weaker dipole-dipole attractions, and the boiling points are observed to increase steadily. Activity Answer Guide Page 1: Water is considered the universal solvent because its polarity makes it very good at dissolving many solutes.

Atttractions atomic number is by definition the numberof protons in an atom’s nucleus. Picture taken with temperature set to “Low” for 20, fs.

SAM Teachers Guide Solubility – RI

Be sure atractions your drawing aligns with the definition of a solution. There are many examples of how computer models are used to understand pollution flow. Download for free at http: Click the “Run” button to run the model to the left.