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Good Morning!

How are you?  today we will study Chemical Bonding. First check the answers on the Periodic Table Wortshreret. Then read about Chemical Bonding.

We will review ionic bonding and covalent bonding in this class. You already know this, but there id a lot of new English vocabulary. Look at the vocabulary for Chemical Bonds.

Do Pronunciation Practice. Repeat the words you hear. Do this twice.

Next do the Crossword Puzzle and check your answers.

Then so Listening Practice. Watch The Tyler Dewit video about Ionic bonds.

Then read about Naming Binary Ionic Bonds. Binary means 2. A binary compound has 2 ions. Naming is looking at a chemical formula and saying the name. NaCl = Sodium Chloride.  MgO =. Magnesium Oxide. 

There are two things to do for Homework.

Kahoot Quiz

Naming Binary Ionic Compounds Worksheet. 

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First Check Your Homework

Was it easy, or so so?

Let’s start Class 2.

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Class 2

April 24

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Chemical Bonds Atoms are the basic building blocks of all types of matter. Atoms link to other atoms through chemicals bonds resulting from the strong attractive forces that exist between the atoms. So what exactly is a chemical bond? It is a region that forms when electrons from different atoms interact with each other. The electrons that participate in chemical bonds are the valence electrons, which are the electrons found in an atom's outermost shell. When two atoms approach each other these outer electrons interact. Electrons repel each other, yet they are attracted to the protons within atoms. The interplay of forces results in some atoms forming bonds with each other and sticking together.

Main Types of Chemical Bonds The two main types of bonds formed between atoms are ionic bonds and covalent bonds. An ionic bond is formed when one atom accepts or donates one or more of its valence electrons to another atom. Ionic molecules are made from metals and non-metals.  A covalent bond is formed when atoms share valence electrons.

Ionic bonds form between a metal and a non-metal.

Covalent bonds form between two non-metal atoms.

• Metallic bonds form between two metal atoms

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Vocabulary for Chemical Bonds

 Review the vocabulary for chemical bonds and read the article on Covalent vs Ionic Bonding.

chemical bond between atoms 原子間の化学結合 chemical bonding 化学結合 attractive force between atoms 原子間（の）引力 interact with と相互作用する valence electron 《a ～》価電子、原子価電子◆原子の最も外側の軌道（最外殻）の電子。原子の化学結合、解離をつかさどる電子。 outermost (electron shell 最外電子殻) repel 反発する ionic bond イオン結合◆原子、原子団の間の電子移動による結合。プラスとマイナス原子（団）の結合。結合力は強い。 covalent bond 共有結合◆原子、原子団が荷電子を共有することでより低エネルギー状態になり、結合すること。 form a covalent bond 共有結合を形成する polar covalent bond ポーラー結合、極性結合 metallic bond 金属結合◆価電子が全ての原子に共有されている結合。価電子は自由に移動（自由電子）できる。 shared electrons 共有電子対 metal element 金属元素 non-metal element 非金属元素 electronegativity 電気陰性度 value ~価 (example: ph value = pH値)

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Pronunciation Practice

Let’e practice pronunciation for Chemical Bonding. Play the audio file and repeat after me. Click the Play Botton in the upper left corner.

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Chemical Bond Crossword Puzzle

Let’s review the vocabulary for chemical bonds.

Use the link I sent you to download the crossword puzzle, or use the picture below.

Do the crossword puzzle.

Check your answers. Click here.

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Review the vocabulary and do the crossword puzzle.  Click here to check your answers.

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This Youtube video from Tyler DeWitt introduces ionic bonding.

Metals and non-metals form ionic bonds.

Electronegativity increases from left to right on the Periodic Table.

Metals give electrons to non-metals in ionic bonding.

Metals become positive ions. They lose electrons.

Non-metals become negative ions. They gain electrons.

Naming Ionic Compounds

Use the Element Name for the first element.

Use the IDE name for the second element

CaCl is Sodium Chloride. 

CaCl is Calcium Chloride. 

MgO is Magnesium.Oxide

A cation is a positive ion. An anion is a negative ion. In NaCl Na is a cation and Cl is an anion.

Subscripts {〔文字・記号が〕下付きの} in the chemical formula (化学式) don’t matter. Mg3P2 .  is Magnesium phosphide. (Don’t matter = 関係ない) 

Homework

Review with a Kahoot Quiz  CLICK HERE

Use the link I sent you and do the Naming Binary Ionic Compound Worksheet.

End of Clads 2

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Have a Nice Weekend!

How did it go today? Did you have any problems?

If you had trouble downloading the documents, please contact me. I will email them to you.

Please do the cahoot Quiz before April 24.

Thanks for doing your best today.  See you next class.

今日はどうだった？何か問題がありましたか？

ドキュメントのダウンロードで問題が発生した場合は、ご連絡ください。それらをメールでお送りします。

4月24日までにcahootクイズを行ってください。

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Good Morning!

Use this page at your own pace. Keep going down until End of Class 1.

First write a self introduction and email it to me. 

Then we will review the Periodic Table. Read Today’s Schedule.

Look at the picture of How to Download.

Start reviewing the Periodic Table.

Download the Periodic Table.

Keep reviewing the Periodic Table and watch the 1st video.

Study Rows and Columns. What do they mean?

Watch the Tyler DFeWEitt video about Valence Electrons (価電子) and the Periodic Table.

Make sure you understand where Metals, Transition Metals and Non Metals are on the Periodic Table.

Review Vocabulary.

Do the Kahoot Quiz.

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Let’s Start

Hi, my name is Craig Delaney. Please call me Craig. I’m from San Francisco, California. I’m looking forward to meeting you all in May. Please be careful and stay safe.  Stay home and enjoy the virtual life. Play games, use SNS, talk to friends online, and, of course, study. This is the best way to beat the virus.

We fill use email for communication.  Use email to send me a message or hand in homework.  電子メールを使用して私に連絡し、質問し、宿題を提出します

The focus of our class is Talking about Basic Chemistry in English.We will start with the Pereiodic Table. We sill use the Periodic Table to  predict different types of chemical bonding. Chemical Bonfing causers chemical compounds. For exammple Na and Cl combine to form sodium chloride, or salt.

But today please start by introducing yourself. Please write a short self introduction and email it to me.

Assignment 1

Write a short self introduction and email it to me.

短い自己紹介を書いて私にメールしてください。

What’w your name? Include the mathematical nformation below.

Where are you from?

What is your major (専攻)?

Are you in any clubs or circles?

What do you like to do in your free time?

Your own comments. 自身のコメント

Please include your email address. メールアドレスを含めてください。

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The Periodic Table 周期表

Next let’s review the Periodic Table.I am sure you know this. The most important thing to do is learn the English vocabulary.

次に、周期表を確認しましょう。きっとご存知でしょう。最も重要なことは英語の語彙を学ぶことです。

Today’s Schedule

Today’s class starts at the top of the page. Keep scrolling down until you see End of CVlass 1 After you read the section on Metals, Transition Metals and Non-Metals, click OLDER POSTS to go to the next page. Then review Class 1 vocabulary and do the Kahoot Quiz.

今日のクラスはページの上部から始まります。 End of Class 1が表示されるまで下にスクロールし続けます。金属、遷移金属、非金属のセクションを読んだ後、ページ下部の [Older Posts] をクリックして次のページに移動します。次に、クラス1の語彙を復習し、カフートクイズを行います。

Watch the Introduction Video.and review the information on the Periodic Table. 

.Understand the information about the elements. 

Understand what the rows and columns mean.

Download the Periodic Table.

Watch the Tyler DeWill video about Valence Electrons and the Periodic Table.

Do Assignment 2. Use the Periodic Table to fill in information for the elements.

Do the Kahoot Quiz and review the Periodic Table and vocabulary.

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How to Download

When you click a download link, this screen appears.

Click the Download icon in the top right corner.

ダウンロードリンクをクリックすると、この画面が表示されます。

右上隅にあるダウンロードアイコンをクリックします。

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The Periodic Table  周期表

Explaining Elements   英語解説

The symbol for Sodium is NA.

The Atomic Number is 11

The Atomid Mass is 22.99 (23).

It has eleven Electrons.

It has 11 Protons.

It has 12 Neutrons. (Atomic Mass - Atomic Number = Number of Neutrons)

You will need a copy of the Periodic Table. if you need one, you can download a dopy below.

周期表必要になります。以下からダウンロードできます。

,Periodic Table Download 白黒コピー      

Periodic Table Download color copy  カラーコピー

Why is the Periodic Table Important? from Thoughtco.com

The table is useful for modern students and scientists because it helps predict the types of chemical reactions that a particular element is likely to participate in. Rather than memorizing facts and figures for each element, students and scientists need only glance at the table to learn much about the reactivity of an element, whether it is likely to conduct electricity, whether it is hard or soft, and many other characteristics.Elements in the same column as one other are known as groups and they share similar properties. For example, the elements in the first column (the alkali metals) are all metals that usually carry a 1+ charge in reactions, react vigorously with water, and combine readily with nonmetals.Elements in the same row as one other are known as periods and they share the same highest unexcited electron energy level.Another useful feature of the periodic table is that most tables provide all the information you need to balance chemical reactions at a glance. The table tells each element's atomic number and usually its atomic weight. The typical charge of an element is indicated by its group.

2019 was the International Year of the Periodic Table. “The Periodic Table isone of the most significant achievements of science, not only for chemistry, but also physics and biology.”--UNESCO Website.

2019年は国際周期表の年でした。 「周期表は、化学だけでなく物理学や生物学にとっても、科学の最も重要な成果の1つです。」-ユネスコのウェブサイト。

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First, let’s review the Periodic Table.

Watch this video and review the basic features of the Periodic Table

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The Periodic Table  周期表

Rows

Elements in the same row have the same number of electron shells (電子殻).For example, Hydrogen and Helium have one electron shell. All the elements in Row 2 have 2 electron shells.

Rows are also called Periods.

Columns

Elements in the same column have the same number of valence electrons (価電子). All the elements in column 1 (H, Li, Na etc) have 1 valence electron.

Columns are also called Groups,