Learning Materials
Features
Discover
Chapter 2: Q.33E (page 67)
Write the empirical formula for the following compounds:
The empirical formula for the given compounds are as follows:
Over 30 million students worldwide already upgrade their learning with 91影视!
All the tools & learning materials you need for study success - in one app.
Get started for free
Write the molecular and empirical formulas of the following compounds:\(\begin{aligned}{}a)O = C = O\\b)H - C \equiv C - H\end{aligned}\)
c)
(d)
Predict and test the behavior of 伪 particles fired at a 鈥減lum pudding鈥� model atom.
(a) Predict the paths taken by 伪 particles that are fired at atoms with a Thomson鈥檚 plum pudding model structure. Explain why you expect the 伪 particles to take these paths.
(b) If 伪 particles of higher energy than those in (a) are fired at plum pudding atoms, predict how their paths will differ from the lower-energy 伪 particle paths. Explain your reasoning.
(c) Now test your predictions from (a) and (b). Open the Rutherford Scattering simulation (http://openstaxcollege.org/l/16PhetScatter) and select the 鈥淧lum Pudding Atom鈥� tab. Set 鈥淎lpha Particles Energy鈥� to 鈥渕in,鈥� and select 鈥渟how traces.鈥� Click on the gun to start firing 伪 particles. Does this match your prediction from (a)? If not, explain why the actual path would be that shown in the simulation. Hit the pause button, or 鈥淩eset All.鈥� Set 鈥淎lpha Particles Energy鈥� to 鈥渕ax,鈥� and start firing 伪 particles. Does this match your prediction from (b)? If not, explain the effect of increased energy on the actual paths as shown in the simulation.
Using the periodic table, predict whether the following chlorides are ionic or covalent:\(SiC{l_4},PC{l_3},CaC{l_2},CsCl,CuC{l_2}{\rm{ and }}CrC{l_3}.\)
Predict and test the behaviour of 伪 particles fired at a Rutherford atom model.
(a) Predict the paths taken by 伪 particles that are fired at atoms with a Rutherford atom model structure. Explain why you expect the 伪 particles to take these paths.
(b) If 伪 particles of higher energy than those in (a) are fired at Rutherford atoms, predict how their paths will differ from the lower-energy 伪 particle paths. Explain your reasoning.
(c) Predict how the paths taken by the 伪 particles will differ if they are fired at Rutherford atoms of elements other than gold. What factor do you expect to cause this difference in paths, and why?
(d) Now test your predictions from (a), (b), and (c).
Open the Rutherford Scattering simulation (http://openstaxcollege.org/l/16PhetScatter) and select the 鈥淩utherford Atom鈥� tab. Due to the scale of the simulation, it is best to start with a small nucleus, so select 鈥�20鈥� for both protons and neutrons, 鈥渕in鈥� for energy, show traces, and then start firing 伪 particles. Does this match your prediction from (a)? If not, explain why the actual path would be that shown in the simulation. Pause or reset, set energy to 鈥渕ax,鈥� and start firing 伪 particles. Does this match your prediction from (b)? If not, explain the effect of increased energy on the actual path as shown in the simulation. Pause or reset, select 鈥�40鈥� for both protons and neutrons, 鈥渕in鈥� for energy, show traces, and fire away. Does this match your prediction from (c)? If not, explain why the actual path would be that shown in the simulation. Repeat this with larger numbers of protons and neutrons. What generalization can you make regarding the type of atom and effect on the path of 伪 particles? Be clear and specific.
Determine the number of protons, neutrons, and electrons in the following isotopes that are used in medical diagnoses:
(a) atomic number 9, mass number 18, charge of 1-
b) atomic number 43, mass number 99, charge of 7+
(c) atomic number 53, atomic mass number 131, charge of 1-
(d) atomic number 81, atomic mass number 201, charge of 1+
(e) Name the elements in parts (a), (b), (c), and (d)
What do you think about this solution?
We value your feedback to improve our textbook solutions.
Explanations 
Textbooks 
Flashcards 
91影视 AI 
Notes 
Study Plans 
Study Sets 
Find a degree 
Magazine