CHY 123 Study Guide - Final Guide: Effective Nuclear Charge, Atomic Orbital, Transition Metal

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28 Dec 2015

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The greater the bond order (number of shared electron pairs) the greater the d value, true for other bonded atoms too: nn, oo, no , co etc. 1. sum up all the valence electrons from all atoms(group 4=4v) Though we use the octet rule as a basis for explaining and drawing chemical species, there are many exceptions to the rule . like hydrogen. 7. 10 formal charges denotes whether an atom has mor or less electrons in an electron dot structure compared to its number of valance electrons. formal charges are used to access the relative contribution of individual resonance structures the resonance hybrid. how do you know it"s formal charge? the valance shell on the lewis dot diagram has too many electrons (negative charge) or would have not enough (positive charge) Looking at each atom in the lewis structure: 1. count both electrons in a lone pair (non-bonding electrons) and one electron per bond.

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PLEASE READ THE WHOLE QUESTION

SIDE NOTE:

IN BIZARRO WORLD, the S subshell can only hold 2 electrons, the P subshell can only hold 4 electrons, the D subshellf can only hole 6 electrons and the F subshell can only hold 8 electrons.

We are trying to create a new periodic table based on these assumptions.

The modern periodic table is arranged the way it is because of quantum mechanics. That is, there are sections for each subshell, and the number of columns in each section are dictated by the number of electrons allowed in each subshell.

Imagine that you have entered an alternate dimension where the laws of quantum mechanics are different.The elements have the same symbols and even the same number of protons, neutrons, and electrons, but their arrangement on the Bizarro Periodic Table will differ greatly from our own. They use the same letters to designate the subshells (s, p, d, and f) even though their number of orbitals differ.

Consider these rules for the quantum numbers in Bizarro World:

n can be any whole number from 1 to infinity (this is the same as our world.)

l can be integer values from 0 to n.

m_l can only go from 0 to l.

m_s is the same as in our world (Â± Â½)

Answer the following questions:

What subshells are allowed in the Bizzaro first shell? The second shell? The third shell? The fourth shell?

How many orbitals and electrons fit into the Bizarro s subshell? The p subshell? The d subshell? The fsubshell?

Based on this information, please draw what the Bizzaro Periodic Table might look like.

Draw the first 6 rows and include the s, p, d, and f subshell areas (include the f block between the s and dblocks, not separated).

Remember that the (n-1) rule for d subshells and (n-2) rule for f subshells still applies.

You donât have to list the atomic numbers or masses in each box, just the element symbols will be fine.

As a hint: the 6th row of your Bizarro Periodic Table should end with element 76, Osmium.

What elements would make up the Bizarro Noble gases?

What elements would make up the Bizarro Halogens?

How many total electrons would it take to fill the valence shell for any given atom?

Please give the Bizzaro electron configuration for the following elements. You may use Bizarro noble gas abbreviations for the core electrons if you like.

Hi Iâve been struggling with my lab report and in need of some help. Here is everything you might need the lab report and data recorded in my notebook. I need help in the report questions please

QUALITATIVE STUDIES OF OXIDATION-REDUCTION REACTIONS Your objectives in this experiment include determining the products means of experimental tests, experimentally determining the relative ability of chlorine, and iodine to act as oxidizing agents, and designing an experiment to test an of a chemical reaction by bromine d rank a group of in order of their strength as reducing agents. All these objectives will require you to think logically in both your approach and your analysis of the results. Pre-Lab Questions: 1. In this lab you will be mixing hexane with aqueous (water) solutions. Which layer will be the water layer - top or bottom? Explain what property allows you to determine this. 2. Write a balanced chemical equation for the reaction of calcium metal with hydrochloric acid. What visible changes do you expect to see? Safety and Disposal: 1. Hexane is a volatile and flammable solvent. No open flames during this laboratory. When corked test tubes are shaken, pressure may develop, especially when a volatile solvent is one of the components. Remember to release the pressure intermittently by removing the cork slowly 2. Hydrochloric acid is corrosive. Wash your hands well with soap and water after working with it. 3. All solutions containing hexane must be placed in a container for recovery. Do not discard hexane down the sink. Do not put metals in the hexane recovery container. Part 1: The halogens Non-metals, such as the halogens, have relatively high electron affinities and as a result tend to react by gaining electrons, which we call becoming reduced, to form anions. In this experiment we will use the difference in solubility of the halogens (Cl2, Br2, and 12) as compared to the halides (Cr'. Br, and I') to test the reactivity of the elements The elemental halogens are non-polar and therefore are not very soluble in water. As a resul solutions of the halogen s in water are not very brightly colored. However, if an aqueous solution is mixed with a non-polar solvent, such as hexane, C&H14, the halogen is usually ferentially extracted into the non-polar solvent. Since the non-polar solvent is water, the halogen color is easily visible as a not miscible with separate colored layer

CHY 123 Study Guide - Final Guide: Effective Nuclear Charge, Atomic Orbital, Transition Metal

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