CHEM 105bL Chapter Notes -Principal Quantum Number, Valence Electron, Noble Gas

7 views3 pages

corss

13 Apr 2023

School

USC

Department

Chemistry

Course

CHEM 105bL

Professor

For unlimited access to Textbook Notes, a Class+ subscription is required.

Document Summary

Chemistry :: atoms with the same number of valence electrons and are part of the same group have similar chemical properties. Key words concepts: valence electrons, core electrons, shells, periodic table, group, chemical similarity. Shell 1 = s subshell = 1 orbital = 2 electrons. Shell 2 = s, p subshells = 4 orbitals = 8 electrons. Shell 3 = s, p, d subshells = 9 orbitals = 18 electrons. Shell 4-7 = s, p, d, f subshells = 16 orbitals = 32 electrons. Electrons are drawn to the lowest energy sublevel (and lowest shell) Electrons in the same orbital have opposite spin. Can use noble gas shortcuts but must be from the preceding noble gas. Orbital diagrams: na1- has the same orbital notation as neon (but is not neon, that is determined by protons, fill out periodic table based on sublevels.

Related Questions

please answer questions 12- 18

Quantum mechanics is a very complex theory. A good way to help you remember it is to compare it to an apartment building. An apartment building has different floors, different apartments on each floor, and different rooms within each apartment. We can look upon the electrons of an atom as rather peculiar apartment dwellers. Electrons prefer the floor closest to the ground and the smallest apartments. Electrons also prefer to live one to a room until each room in an apartment has one occupant. The electrons will then pair up until each room has two. Each room in an apartment can hold two electrons Apartment buildings have several floors. The model we discuss has several floors, but only the first 7 floors will be occupied. All the electrons known today will fit within 7 floors of the building. Additional floors are available but will only be occupied in special situations. The floors in the apartment building are called shells in the electron model and are numbered 1-7. 1) According to what you have just read, what shell will be occupied first by electrons? 2 flers Each shell (or floor) in the model has one or more apartments, which are called subshells. These subshells are apartments of four sizes: s,p,d, and f. An s subshell (apartment) has only a single room. A p subshell has 3 rooms. A d subshell has 5 rooms, while an fsubshell has 7 rooms. An s subshell then will hold a maximum of 2 electrons according to the model. 2) A p subshell will bold a maximum of how many electrons? 3) How many will a d subshell hold? lo e lect@n)ã.ã 4) How many will an fsubshell hold? Iy cles tiou Each room in a subshell is called an orbital. From the previous question we know that a s subshell will consist of one orbital with a capacity (occupancy) of 2 electrons. 5) A p subshell will consist of 3 orbitals with a total subshell capacity of electrons. 6) A d subshell will have 7) Anf subshell will have orbitals and a total capacity of lo_ electrons orbi electrons. The first shell (floor) has only 1 subshell (apartment), which is an s subshell Because of its location on the first shell, it is called a ls subshell 8) How many orbitals(rooms) are there in the Is subshell? 9) How many electrons will the subshell hold?-- a. The second shell (floor) only has an s subshell (apartment) and a p subshell 10) If the s subshell is called 2, what do you suppose the p subshell is called? 11) How many orbitals (rooms) are in that p subshell? 12) How many subshells are in the second shell? 13) How many orbitals are there in the second shell? 14) How many electrons can occupy the second shell? 15) The third shell has 3 subshells: s.p andd 16) What are they called? 17) How many subshells are in the third shell? 18) How many orbitals are in the third shell?

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.

CHEM 105bL Chapter Notes -Principal Quantum Number, Valence Electron, Noble Gas

Document Summary

Get access

Related textbook solutions

Chemistry: Structure and Properties

Basic Chemistry

Principles of Chemistry Molecular Approach

Principles of Chemistry Molecular Approach

Chemistry: Structure and Properties

Chemistry: A Molecular Approach

Chemistry: A Molecular Approach

Principles of Chemistry: A Molecular Approach

Chemistry: The Central Science

Related Documents

CHEM 105bL Chapter Notes - Chapter 19: Beta Decay, Alpha Decay, Electron Capture

CHEM 105bL Chapter Notes - Chapter 24: Coordination Complex, Coordinate Covalent Bond, Ethylenediamine

CHEM 105bL Lecture 16: Transition Metals

Related Questions