Download the App!

Get 24/7 study help with the Numerade app for iOS and Android! Enter your email for an invite.

Get the answer to your homework problem.

Try Numerade free for 7 days

Like

Report

A hydrogenlike ion is an ion containing only one electron. The energies of the electron in a hydrogenlike ion are given by$$E_{n}=-\left(2.18 \times 10^{-18} \mathrm{J}\right) Z^{2}\left(\frac{1}{n^{2}}\right)$$where $n$ is the principal quantum number and $Z$ is the atomic number of the element. Calculate the ionization energy (in $\mathrm{kJ} / \mathrm{mol}$ ) of the $\mathrm{He}^{+}$ ion.

Ionization energy of the $\mathrm{He}^{+}$ ion is $5.251 \times 10^{3} \mathrm{kJ} / \mathrm{mol}$

Chemistry 101

Chapter 8

Periodic Relationships Among the Elements

Periodic Table properties

Rice University

Drexel University

University of Kentucky

University of Toronto

Lectures

03:33

In chemistry and physics, a periodic table or periodic chart is a tabular arrangement of the chemical elements, ordered by their atomic number, electron configurations, and recurring chemical properties. Elements are presented in order of increasing atomic number ("column") and periodic properties, such as symbol, name, atomic mass and group (period) number are listed for each element. The periodic table can be used to derive relationships between the various properties of the elements, and predict the properties of new elements yet to be discovered or synthesized.

08:45

The periodic table is a tabular display of the chemical elements, organized on the basis of their atomic numbers, electron configurations, and recurring chemical properties. The table can be used to derive relationships between the properties of the elements, and predict the properties of new elements yet to be discovered or synthesized. The periodic table can be used to summarize chemical behavior, and it is widely used in chemistry and other sciences as a tool to determine the chemistry of new substances.

02:41

A hydrogen-like ion is an …

05:56

The energy of any one-elec…

Calculate the ionization e…

06:00

Calculate the energies nee…

04:56

01:16

According to a relationshi…

01:59

So in this podcast we have a hydrogen like atom, and we're determining the ionization energy in clearly jewels Permal For the 80 plus iron. Let's first week up a few fundamentals. The ionization energy is the quantity of energy that is needed for an isolated Gacy's atomic atom in the ground electron state, where it will allow the system to discharge an electron. This results in a cattle which has a positive charge, associate ID. So here is the equation that we will need. So we have changing energy equals negative 2.18 times 10 to the minus 18 jewels multiplied by said squared, multiplied by one over N F squared minus one over and I squared. So then we sub in our numbers for the ground state of the initial being one and then we ionized to infinity. That is to then we simplify this down. So, for example, we've squared, are said, which is four obviously on. Then we keep canceling it down till we get our change in energy. All of my working is up on the screen. Just in case you don't understand the step. I have included each of my simplified steps on the screen. So however, we need to convert this answer that we have in jewels to kita jewels per mole. So we multiply by. Avocado is constant on then. We also divide that by 1000, and that gives us five point 251 times 10 to the minus three power three.

View More Answers From This Book

Find Another Textbook

01:50

Use an example to illustrate each of the following terms: lone pairs, Lewis …

04:27

Ethanol $\left(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}\right)$ burns in ai…

03:19

How many grams of KOH are present in $35.0 \mathrm{mL}$ of a $5.50 M$ soluti…

01:24

Why does the viscosity of a liquid decrease with increasing temperature?

01:29

List the elements that exist as gases at room temperature. (Hint: Most of th…

06:09

Describe how you would prepare $250 \mathrm{mL}$ of a $0.707 M \mathrm{NaNO}…

The concentrated sulfuric acid we use in the laboratory is 98.0 percent $\ma…

01:07

What is the coordination number of each sphere in (a) a simple cubic cell, (…

01:41

What is surface tension? What is the relationship between intermolecular for…

Consider the three gas containers shown here. All of them have the same volu…