Courses
Courses for Kids
Free study material
Offline Centres
More

What are Elements?

ffImage
Last updated date: 29th Feb 2024
Total views: 108.3k
Views today: 3.08k
hightlight icon
highlight icon
highlight icon
share icon
copy icon

Elements: Definition and Properties of Elements

Hello, you must have heard about the chemicals, haven’t you? So, here, we will talk about what those chemicals are made of, i.e. elements. Chemistry is the study of material substances' structures, physical characteristics, and chemical characteristics. It is crucial to realise that not all gases, liquids, and solids are equal. They are all unique in terms of composition. The classification of the matter is crucial for this reason. One of them is an element. Pure substances made up of one single atom are known as elements. Elements act as a building block for all the matters present on earth. Currently, 118 elements are known till now. Out of them, 94 are naturally occurring elements. Some examples of elements in everyday life include oxygen, hydrogen, gold, iron, etc. In this article, we will learn about the different types of elements in science.



Periodic Table


Periodic Table


What are the Properties of Elements?

All elements have their unique properties. Those incorporated properties are not restricted to conductivity, attraction, melting point, boiling point, colour, states of matter, and others. Components with comparative properties are assembled in various regions of the periodic table of elements. 


  • Boiling Point

The boiling point increases with increased pressure up to the critical point.


  • Melting Point

The melting point of an element is the energy required to change the state of an element from its solid state to a liquid state.


  • Density

The property of density of an object is the mass of the object compared to its volume.


Noticing an element's properties permits researchers to classify it and decide its reactivity with different elements. Where the elements are situated on the occasional table will decide how it joins or doesn't with different elements.


  • Thermal and Electrical Conductivity

Conductivity can be defined as the ability to let heat and energy pass through, Generally, metals are good conductors, and nonmetals are poor conductors, with the exceptions.


  • Physical state

In the periodic table, there are 118 elements. And physical state is a result of how closely the atoms are packed. In this sense, there are three states: Solid, Liquid and Gas.

Periodic Properties of Elements

The example where elements are organised on the periodic table assists researchers with ordering them in light of properties and reactivity.


Every period (line) of the periodic table is related to the number of energy levels that orbit a nucleus. Line 1 has one energy level; Row 2 has two energy levels; Row 3 has three energy levels, etc., up to 7. The number of electrons orbiting the nucleus of an atom will decide how that element interacts with other elements.


The properties of elements, including, however, not restricted to, density and reactivity can be anticipated in light of their course of action in the periodic table. For instance, as you get across a period, density generally increments.


Along these lines, an equivalent measured 3D shape of titanium, iron, and copper may all have a similar volume yet will have varying densities. The periodic table can also anticipate different properties of elements, including the states of matter, reactivity, and conductivity. Here you will get the periodic properties of elements pdf.

What are the Types of Elements?

Elements can be classified as metals, nonmetals, and metalloids.


Metals:- A metal is a material that, when freshly prepared, polished, or fractured, shows a lustrous appearance and conducts electricity and heat.


Nonmetals:- Nonmetal is an element that lacks a predominance of metallic properties. The electrons in nonmetals behave differently from those in metals.


Metalloids:- Metalloids show the properties of both metals and nonmetals.

Examples of Elements in Everyday Life

  • The element lithium is found in lithium batteries that power your telephones, PCs, and practically all battery-powered gadgets. 

  • Fluorine particles can be found in drinking water and toothpaste. It battles cavities and tooth rot. 

  • Calcium is expected to shape bones and the shells of living things. Bismuth is tracked down in medication to treat loose bowels, and assists individuals with feeling quite a bit improved from a steamed stomach. 

  • Iodine is utilised as a skin sanitiser, particularly when somebody has a medical procedure. 

  • Chromium is utilised to make sparkling edges on new vehicles. 

  • Copper is utilised inside electrical wires to lead power.

  • Chlorine is used to disinfect water.

  • Bromine is used in photographic films.

  • Graphite is used to make pencils.

  • Oxygen is used up in the human body and is essential for respiration.


Uses of Elements


Uses of Elements

Summary

There are different forms of elements. Different elements have different properties. Elements are naturally found, and there are about 118 elements on earth. You can observe more and more elements to know the difference. This brings us to the end of our article, in which we have discussed what elements are, the types of elements, and elements in science. We have also discussed the properties and sources of different elements. In case of more doubts, let us know in the comments section below.

FAQs on What are Elements?

1. Is water an element?

No, water is not an element. Water is a compound. Water is made up of water molecules, so we can not consider it an element. A water molecule is a combination of hydrogen and oxygen atoms.

2. Is air an element?

No, the air is not an element. So many different types of gases and particles are present in the air, so air is not considered an element. Air is a mixture. Constituents of air can not be separated.

3. Are there elements with the same property?

No, two atoms of the same chemical element are typically not identical. Firstly, there is a range of possible states that the electrons of an atom can occupy. Two atoms of the same element can be different if their electrons are in different state.