Question

What are the \[5\] most common elements?

Answer 1

Hint: In this question, we have to state about the \[5\]most common elements. Here, it is not specified the place about the presence of elements so, we will consider that we have to state about the \[5\]most common elements on earth. We will be using our knowledge to state the elements. Also, we will be stating how useful these elements are.

Complete Step by Step Solution:

 The five most common elements on earth are Oxygen-\[46\% \], Iron-\[5.6\% \], Silicon-\[28\% \], Aluminium-\[8.3\% \] and Calcium-\[4.2\% \].

Uses of these elements:
1. Oxygen: Uses of oxygen include product of sword, plastics and fabrics etc. and life-saving systems in aircraft, submarines, spaceflight and diving

2. Iron: Iron is used to make amalgamation brands like carbon brands with complements similar as nickel, chromium, vanadium, tungsten, and manganese.

3. Silicon: Silicon is one of the most useful rudiments to humanity. utmost is used to make blends including aluminium- silicon and ferro- silicon (iron- silicon).

4. Aluminium: Aluminium is used in a wide variety of outcomes including barrels, foils, kitchen implements, window frames, beer casks and airplane corridor

5. Calcium: Calcium is used to manufacture the minerals bottled up in bones, shells and teeth.

Note: Students usually make mistakes while stating the five most common elements on earth. As we all know that Nitrogen, Oxygen, Hydrogen are the abundant elements on earth, so many students list these out in the most common elements on Earth. This is wrong. Question is asked to state five common elements which means we have to state those elements which are in common use and not the one which are abundant.