Hello and welcome to Teach Kids Chemistry! Today, we will be discussing the fascinating element known as argon. Argon is a noble gas that can be found in the Earth’s atmosphere and is used in a variety of applications, from welding to lighting. In this overview, we will explore the properties and uses of argon in a simple and non-complex manner, perfect for introducing kids to the world of chemistry. So, let’s get started!
The Periodic Element Argon Overview
Argon is a chemical element with the symbol Ar and atomic number 18. It is a noble gas and is the third most abundant gas in the Earth’s atmosphere. Argon has an atomic mass of 39.95 u and has 18 protons, 18 electrons, and 22 neutrons. It is located in period 3 and group 18 of the periodic table. Argon is a nonmetal and has a very low electronegativity, meaning it does not readily form chemical bonds with other elements. It is colorless, odorless, and tasteless, and is present in the air we breathe.Argon has a melting point of -189.3°C and a boiling point of -185.9°C. It is a gas at room temperature and pressure and is commonly used in light bulbs, welding, and as a protective gas in the production of metals. Argon has a density of 1.784 g/L and a specific heat capacity of 0.52 J/g·K. It is a very stable element and does not react with other elements under normal conditions. Overall, argon is an important element in the Earth’s atmosphere and has many practical applications in industry.
Everyday objects that contain the periodic element argon?
There are many everyday objects that contain chemicals or compounds that can be used to teach chemistry concepts. For example, water is a compound made up of two hydrogen atoms and one oxygen atom, and can be used to teach about chemical formulas and the properties of different elements. Salt, which is made up of sodium and chlorine, can be used to teach about ionic bonding and the properties of salts. Baking soda, which is sodium bicarbonate, can be used to teach about chemical reactions and the properties of acids and bases. Other examples include vinegar, which is acetic acid, and sugar, which is a carbohydrate. By using these everyday objects, students can learn about chemistry concepts in a simple and relatable way.
Differences in the periodic element argon across states of matter
The state of an element can vary greatly depending on its temperature and pressure. At standard temperature and pressure (STP), most elements are either solids or gases. Solids have a fixed shape and volume, while gases have neither. As temperature and pressure increase, some solids can become liquids, which have a fixed volume but take the shape of their container. As temperature and pressure continue to increase, some liquids can become gases, which have neither a fixed shape nor volume. At extremely high temperatures and pressures, some gases can become plasmas, which are highly ionized and conductive. Plasmas are often found in stars and lightning bolts, and have unique properties such as the ability to emit light.
Is the periodic element argon dangerous or radioactive?
Argon is a noble gas and is not dangerous or radioactive. It is a non-toxic and non-reactive gas that is present in the Earth’s atmosphere in small amounts. Argon is used in various applications such as welding, lighting, and as a protective gas in the production of metals. It is also used in medical applications such as in laser surgery and as a contrast agent in medical imaging. Overall, argon is a safe and useful element that poses no harm to humans.
Is the periodic element argon rare and expensive?
Argon is not considered rare or expensive. It is actually the third most abundant gas in the Earth’s atmosphere, making up about 0.93% of the air we breathe. It is also relatively easy to obtain through air separation processes, where it is extracted from the air and purified for various industrial and scientific applications. Therefore, argon is widely available and not considered a precious or expensive element.
Learn about all the elements with a periodic table!