hello guys....
differentiate between molecules, compounds and elements with example....
Answers
Answered by
10
Elements :-
» They are the pure form of matter
» They are formed by the physical combination of same kind of atom.
» They consist single atom.
» Example :- Hydrogen (H), Helium (He), Sodium (Na), Copper (Cu) etc.
Compounds :-
» They are not pure form of matter
» They are made up of more than one
of elements (or atom), that is, always different kinds of atoms are involved in a compound.
» They are formed by chemical combination of atoms
Example :- H2O (water), NaCl (sodium chloride), H2SO4 (sulphuric acid) etc
Molecules
» They are also impure form of matter.
» They are formed by chemical combination.
» They are made up of more than one atom, that is, atom can or cannot be same in a molecule.
Example :- O2, H2O, NaCl, P4 etc
[O2 and P4 are a molecule but not a compound as O2 has same kind of atoms but a compound is made up of different atoms]
Every Compound is a molecule but all molecules are not compounds.
» They are the pure form of matter
» They are formed by the physical combination of same kind of atom.
» They consist single atom.
» Example :- Hydrogen (H), Helium (He), Sodium (Na), Copper (Cu) etc.
Compounds :-
» They are not pure form of matter
» They are made up of more than one
» They are formed by chemical combination of atoms
Example :- H2O (water), NaCl (sodium chloride), H2SO4 (sulphuric acid) etc
Molecules
» They are also impure form of matter.
» They are formed by chemical combination.
» They are made up of more than one atom, that is, atom can or cannot be same in a molecule.
Example :- O2, H2O, NaCl, P4 etc
[O2 and P4 are a molecule but not a compound as O2 has same kind of atoms but a compound is made up of different atoms]
Every Compound is a molecule but all molecules are not compounds.
Mankuthemonkey01:
thanks xD
Answered by
1
What is an Atom?
All the matter in the universe is made of tiny particles called atoms. There are 92 different kinds of atoms in nature. These 92 different atoms combine with one another to form different kinds of matter that we see in nature.
Gold, for example, is made of only gold atoms. When matter is made of only one kind of atom, it is called an element. In the same way, silver is another element which is made of only silver atoms. Because there are 92 different kinds of atoms in nature, there are 92 different kinds of elements. Other examples of an atom are K (potassium) and Fe (iron).
What are Elements?
The element is the fundamental substance that consists of only one type of atom. Elements consist of smaller particles and can be man-made or synthetic. Their arrangement in the periodic table is based on the number of protons in an increasing order. The atomic number of an element is indicated by Z. When atoms are arranged differently in an element having the same number of protons, you get different forms of an element. For example, both graphite and diamond are elements of carbon but they look very different from each other.
What is a Molecule?
A molecule is the smallest unit of a chemical compound and it exhibits the same chemical properties of that specific compound. As molecules are made up of atoms jointly held by chemical bonds, they can vary greatly in terms of complexity and size. The oxygen we breathe has a molecular formula O2. Should we consider this as an element or compound? When two or more atoms of the same elements combine together, we call them Molecules. So, we call O2 as an oxygen molecule. In the same way, we find hydrogen molecules H2, chlorine molecules Cl2 and others in nature.
What is a Compound?
The chemical formula of water is H2O. Observe that, water is made of two hydrogen atoms and one oxygen atom. Here, two different elements, hydrogen and oxygen combine, giving rise to a new substance called water. Such substances, which are made by the combination of two or more kinds of elements are called Compounds. The atoms in a compound are chemically bonded and hence cannot be separated easily. Similarly, the chemical formula of carbon dioxide is CO2 and it is made up of two elements, carbon, and oxygen. Some other examples of compounds are table salt (NaCl), chalk (CaCO3)and water (H2O).
All the matter in the universe is made of tiny particles called atoms. There are 92 different kinds of atoms in nature. These 92 different atoms combine with one another to form different kinds of matter that we see in nature.
Gold, for example, is made of only gold atoms. When matter is made of only one kind of atom, it is called an element. In the same way, silver is another element which is made of only silver atoms. Because there are 92 different kinds of atoms in nature, there are 92 different kinds of elements. Other examples of an atom are K (potassium) and Fe (iron).
What are Elements?
The element is the fundamental substance that consists of only one type of atom. Elements consist of smaller particles and can be man-made or synthetic. Their arrangement in the periodic table is based on the number of protons in an increasing order. The atomic number of an element is indicated by Z. When atoms are arranged differently in an element having the same number of protons, you get different forms of an element. For example, both graphite and diamond are elements of carbon but they look very different from each other.
What is a Molecule?
A molecule is the smallest unit of a chemical compound and it exhibits the same chemical properties of that specific compound. As molecules are made up of atoms jointly held by chemical bonds, they can vary greatly in terms of complexity and size. The oxygen we breathe has a molecular formula O2. Should we consider this as an element or compound? When two or more atoms of the same elements combine together, we call them Molecules. So, we call O2 as an oxygen molecule. In the same way, we find hydrogen molecules H2, chlorine molecules Cl2 and others in nature.
What is a Compound?
The chemical formula of water is H2O. Observe that, water is made of two hydrogen atoms and one oxygen atom. Here, two different elements, hydrogen and oxygen combine, giving rise to a new substance called water. Such substances, which are made by the combination of two or more kinds of elements are called Compounds. The atoms in a compound are chemically bonded and hence cannot be separated easily. Similarly, the chemical formula of carbon dioxide is CO2 and it is made up of two elements, carbon, and oxygen. Some other examples of compounds are table salt (NaCl), chalk (CaCO3)and water (H2O).
Similar questions