What is special about bromine and mercury?
Smelly element No. 35, bromine, is a fairly abundant element but has a rare property: it is the only nonmetal to exist in liquid form at room temperature, and one of only two elements (the other being mercury) that is liquid at room temperature and pressure. Bromine is very harmful to the atmosphere.
How do bromine and mercury behave differently?
The key difference between bromine and mercury is that bromine is the only halogen that is in a liquid state at room temperature, whereas mercury is the only metal that is in a liquid state at room temperature. However, bromine is a nonmetal while mercury is a metal. …
What is similar between mercury and bromine?
Mercury (Hg) and Bromine (Br) are the two liquid elements on the periodic table at room temperature. Hope this answer helps you. 1. Bromine has only 2 stable isotopes(isotopes which do not undergo radioactive decay) whereas mercury has 7 stable isotopes.
Why are bromine and mercury in different categories?
So the two liquid elements, Bromine and Mercury, have atoms that can move around each other, but not disperse at room temperature. With enough heating or cooling, either element can change state to a gas or solid.
Why are mercury and bromine highlighted?
Mercury has a special electron configuration that means the bonds between the mercury atoms are much weaker than the bonds of other metals, so it’s liquid at room temperature instead of solid. Bromine just happens to have a boiling point above room temperature – it’s not unusual for its group, or anything.
What is special about Hg and Br?
Bromine ( Br ) and mercury ( Hg ) are the only elements that are liquids at room temperature. All other elements in the periodic group that contains mercury are solids.
Why bromine is not used in thermometer?
why bromine is not used in thermometers,like mercury bromine is also in liquid form at room temperature. Mercury does not stick on the capillary tube . Its specific heat is low . Bromine does not show such properties.
Which metal is used in thermometer give reasons?
mercury
Which liquid metal is present in thermometer?
Which material is used inside the thermometer?
Mercury is one of the most familiar materials used in liquid thermometers. Other liquids, such as kerosene or ethanol, may also be used in these types of thermometers.
Which sensor is used in digital thermometer?
infrared sensors
Is a thermometer a transducer?
The thermometer is both a transducer (usually a thermocouple that transfers heat energy to voltage) and a sensor (quantifies the transducer output with a readable format).
Is digital thermometer an embedded system?
A Digital Thermometer kit using Temperature Sensor DS1620 and a control application. A Digital Temperature sensor is used which provides 9-bit temperature reading and is interfaced to the microcontroller. The microcontroller receives this digital input and displays it on the LCD interfaced to it.
How long do you leave a digital thermometer under your tongue?
Using a digital oral thermometer You should keep your mouth closed during this time. Place the thermometer tip under the tongue. Hold the thermometer in the same spot for about 40 seconds. Readings will continue to increase and the F (or C) symbol will flash during measurement.
What are the advantages of using digital thermometer?
The advantages of digital thermometers are that they are inexpensive, easy to read, require very little maintenance and give an accurate reading. The disadvantage is that they get damaged easily if dropped and the battery powering them eventually runs out.
What are the components of digital thermometer?
A simple digital thermometer is the combination of a thermocouple, a battery-powered, dual-slope digital voltmeter to measure the thermocouple output, and an electronic display. This provides a low noise, digital output that can resolve temperature differences as small as 0.1 °C.
Are digital thermometers dangerous?
Answer. You may have seen the social media posts warning about possible dangers of non-contact infrared thermometers. These devices, which are held up to a person’s forehead to take their temperature, are being widely used in schools and child care centers. The good news is that the claims about their danger are false.
What is the most accurate method for taking temperature?
Oral