What is superscript and subscript with example?

What is superscript and subscript with example?

An example of subscript is N2. Superscript is the small letter / number above a particular letter / number. An example of superscript is 25. The number 5 above the number 2 is an example of superscript.

What's the difference between subscripts and coefficients?

Subscripts - Part of the chemical formulas of the reactants and products that indicate the number of atoms of the preceding element. Coefficient - A small whole number that appears in front of a formula in a balanced chemical equation.

What is a subscript and what does it tell you?

A subscript tells you how many atoms of each element are present in a compound or molecule.

What does a subscript tell us?

Subscript numbers tell you how many of each element, chemical group or ion are present in a molecule.

What does a superscript tell you?

Ions have superscripts, or tiny numbers above the element's symbol, and they show if an atom has gained or lost electrons. A positive superscript means the atom lost electrons whereas a negative superscript means it gained electrons. For example, Ca +2 lost two electrons.

What does the superscript 2+ mean in ca2+?

If a charge is present, it's indicated in superscript, with a sign (+/-) and a number if more than one charge is present. For example, calcium ions have two positive charges so are written Ca2+.

How isotopes are written?

Isotopes are written in two different ways. They can be written using their symbol with the mass number (to the upper left) and atomic number (to the lower left) or the isotope name is written with a dash and the mass number. For example: Two naturally occurring isotopes of chlorine are chlorine-35 & chlorine-37.

What do isotopes mean?

Isotopes are atoms of the same element that have different numbers of neutrons but the same number of protons and electrons. The difference in the number of neutrons between the various isotopes of an element means that the various isotopes have different masses.

What are the three forms of bromine?

Two naturally existing isotopes of bromine exist, bromine-79 and bromine-81. Isotopes are two or more forms of an element. Isotopes differ from each other according to their mass number. The number written to the right of the element's name is the mass number.

What could be an isotope of bromine?

Bromine (35Br) has two stable isotopes, 79Br and 81Br, and 32 known radioisotopes, the most stable of which is 77Br, with a half-life of 57.

What are the 2 isotopes of bromine?

Bromine has two naturally occurring isotopes (Br-79 and Br-81) and an atomic mass of 79.

Why do isotopes form?

Long story short, isotopes are simply atoms with more neutrons — they were either formed that way, enriched with neutrons sometime during their life, or are originated from nuclear processes that alter atomic nuclei. So, they form like all other atoms.

Where is bromine found?

Bromine is found naturally in the earth's crust and in seawater in various chemical forms. Bromine can also be found as an alternative to chlorine in swimming pools. Products containing bromine are used in agriculture and sanitation and as fire retardants (chemicals that help prevent things from catching fire).

What is the main use of bromine?

One of the major uses of bromine is a water purifier/disinfectant, as an alternative to chlorine. Brominated compounds are used for water treatment in swimming pools and hot tubs and are also used to control algae and bacterial growth in industrial processes.

How do you prevent bromine?

Seven Tips for Avoiding Bromine and Optimizing Iodine

  1. Eat organic as often as possible. ...
  2. Avoid eating or drinking from (or storing food and water in) plastic containers. ...
  3. Look for organic whole-grain breads and flour. ...
  4. Avoid sodas. ...
  5. If you own a hot tub, look into an ozone purification system.

Which is safer chlorine or bromine?

The spa chemicals you use are all safe in the proper amounts. But some people may react differently to them. Chlorine: Can be harsh on the skin, hair, and eyes, especially at too-high levels. ... Bromine: Is gentler on your skin than chlorine, but can be a bit more difficult to wash off after a long soak.

Can you switch from chlorine to bromine?

Converting a chlorine pool to a bromine one is a simple process. You simply balance your water levels and start adding bromine instead of chlorine. Because chlorine activates bromine, you'll need to periodically shock your pool with household bleach to rejuvenate your bromine and keep it at the right levels.

Can you use bromine instead of chlorine?

Bromine works better at higher temperatures than chlorine. Above 75°F, bromine remains stable, whereas chlorine is more effective in temperatures as low as 65°F. This makes bromine a better choice for hot tubs and spas, and an unheated pool will be better served by the use of chlorine.

What happens if you mix bromine and chlorine?

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.

Is it safe to swim in a pool with high bromine?

A safe level is between 2.

Is bromine bad for your hair?

Other chemicals that cause damage include bromine, chlorine, and salt (NaCl). Bromine and chlorine (including chlorine from salt) can react with hair, breaking bonds in its protein, keratin. Salt also strips oils from hair, making it dry.

How many chlorine tablets should I put in my hot tub?

How Many Chlorine Tablets? For smaller hot tubs we recommend 1-3 tablets and for larger hot tubs 3-5 tablets.

Can I just throw chlorine tablets in my pool?

Chlorine tablets are the most commonly used and most efficient sanitizer for pools because of their ease of use. ... NEVER just throw them into your pool water. This will cause them to dissolve on the floor and it can damage and create a permanent bleach stain to your liner or concrete.

Which is better chlorine tablets or granules?

The benefit of chlorine tablets is that the tablets slowly dissolve over time so therefore you have a supply of chlorine entering the water over a period. Chlorine granules however must be added so there is a higher risk that levels may drop if the hot tub is not attended to, adding risk of bacteria growth.

Should I put chlorine in my hot tub everyday?

How Much Chlorine Should I Add to my hot tub? A chlorine level of between 3-5mg/l must be maintained in your hot tub at all times. The addition of chlorine will depend upon usage and bathing habits. It could be daily or every 2-3 days (for 1mg/l add 2g per 1000 litres).