Define functions. Write the advantages of function with program example.

Afunctionis basically a block of statements that performs a particular task. Suppose a task needs to be performed continuously on many data at different points of time, like one at the beginning of the program and one at the end of the program, so instead of writing the same piece of code twice, a person can simply write it in a function and call it twice. And after the execution of any function block, the control always comes back to themain()function.

Here are several advantages of using...

What is mail merge? What are the advantages of using mail merge?

Mail Merge is a handy feature that incorporates data from both Microsoft Word and Microsoft Excel and allows you to create multiple documents at once, such as letters, saving you the time and effort of retyping the same letter over and over.

Its advantages are:-

1. The Mail Merge feature makes it easy to send the same letter to a large number of people.
2. By using Mail Merge, we don’t have to type each recipient’s name separately in each letter.
3. It is economical and saves a lot of time.
4. It is one...

Define the terms with important points and examples:  a).Nucleon  b).Atomic number  c).Atomic mass number  d).Isotopes   e).Atomic mass unit(amu)  f).Relative atomic mass  g).Molecule  h).Radical  ...

1. Nucleon : A proton or a neutron present in the nucleus of an atom of an element is called nucleon . Example: Carbon consist of 6 protons and 6 neutrons . i.e., there are 12 nucleons in C atom.

2. Atomic Number : The atomic number is the total number of protons present in the atom. Example : the atomic number of sodium is 11. i.e., it contains 11 protons and 11 electrons. 

3. Atomic Mass Number : The atomic mass number of an atom is the total number of protons and neutrons (nucleons)...