What element is similar to chlorine?
Any element with 7 electrons in the outermost shell will have similar properties. Thus other elements in the same column of the periodic table as chlorine will have similar properties. Elements in this column form what is called the Halogen series, which is composed of fluorine, chlorine, bromine, iodine, and astatine.
Why is iodine in the same group as chlorine?
Iodine has a lower relative atomic mass than tellurium. So iodine should be placed before tellurium in Mendeleev’s tables. However, iodine has similar chemical properties to chlorine and bromine. To make iodine line up with chlorine and bromine in his table, Mendeleev swapped the positions of iodine and tellurium.
Is bromine similar to chlorine?
Bromine and chlorine are both halogens (an element group including Fluorine, Chlorine, Bromine, Iodine, and Astatine) and they belong to the same chemical family.
Which of the following elements is most similar to chlorine quizlet?
The atomic number of neon is 10 and the atomic mass is 20.179 amu. Use the periodic table to name two elements that have properties similar to those of chlorine (Cl). Fluorine and bromine have properties similar to those of chlorine.
What period is chlorine?
Period 3
Fact box
| Group | 17 | Melting point |
|---|---|---|
| Period | 3 | Boiling point |
| Block | p | Density (g cm−3) |
| Atomic number | 17 | Relative atomic mass |
| State at 20°C | Gas | Key isotopes |
Can chlorine be a liquid?
Chlorine is a greenish yellow gas at room temperature and atmospheric pressure. It is two and a half times heavier than air. It becomes a liquid at −34 °C (−29 °F). The gas is easily liquefied by cooling or by pressures of a few atmospheres at ordinary temperature.
Which is safer chlorine or bromine?
Bromine is more stable than chlorine except when it comes to UV light. The radiation from the sun destroys both chemicals without mercy, but bromine breaks down more quickly here. This is why if you’re using bromine in your spa or hot tub, it’s a really good idea to keep your cover on it during the day.
What happens if you mix chlorine and bromine?
When you add bromine to a chlorine pool, on the other hand, the bromine does not go away but builds up over time, creating a chlorine demand. Therefore, when you shock the pool with chlorine, the residual bromine will convert the chlorine into, you guessed it, bromine.
What are 3 elements that have similar properties?
Answer:The elements in the first column of the Periodic Table (other than hydrogen) are known as Group 1A metals, or alkali metals. When you compare the chemical properties of these elements (lithium, sodium, potassium, rubidium, cesium, and francium), what you’ll notice is that they are all remarkably similar.
Which characteristic is common to most metals?
All metals except for mercury are solids at room temperature. Many metals are shiny, ductile, and malleable. Most are also good conductors of heat. Electricity is a flow of electrons.
Is chlorine compound or element?
Chlorine is in group 17 of periodic table, also called the halogens, and is not found as the element in nature – only as a compound. The most common of these being salt, or sodium chloride, and the potassium compounds sylvite (or potassium chloride) and carnallite (potassium magnesium chloride hexahydrate).
What is chlorine made out of?
Natural chlorine is a mixture of two stable isotopes: chlorine-35 (75.53 percent) and chlorine-37 (24.47 percent). The most common compound of chlorine is sodium chloride, which is found in nature as crystalline rock salt, often discoloured by impurities.
Which is the best Test to test for chlorine?
An alternative test for chlorine is to place damp starch-iodide paper into a test tube of chlorine. A positive result for chlorine is indicated by the paper turning from white to blue-black.
How is residual chlorine tested in drinking water?
There are three main methods to test free chlorine residual in drinking water in the field in developing countries: 1) Pool test kits, 2) Color-wheel test kits, and 3) Digital colorimeters.
What kind of Litmus is used to test for chlorine?
red litmus, usually used to test for alkalis blue litmus, usually used to test for acids The test for chlorine can use either type of litmus paper, but blue litmus paper is used most commonly. The litmus paper must be damp – the water dissolves some of the chlorine so that it can react with the indicator on the litmus paper.
Which is the most reactive element fluorine or chlorine?
Chlorine is intermediate in reactivity between fluorine and bromine, and is one of the most reactive elements.