Free Class Notes & Study Material
Question 1 What are ions? Question 2 How an ion is formed? Question 3 How a cation is formed. Give example? Question 4 How an anion is formed. Give example? Question 5 What are simple ions. Give example? Question 6 What are complex ions. Give example? Question 7 What are ionic compounds? Question 8 Define formula unit of an ionic compound? Question 9 … [Read more...] about Ions
Question 1 What is a chemical formula? Question 2 Give few examples of formulae of elements? Question 3 Give few examples of formulae of compounds? Question 4 Define molecular mass? Chemical Formula A chemical formula represents the composition of a molecule of the substance in terms of the symbols of elements present in the molecule. Formulae of Elements For … [Read more...] about Molecular mass
Question 1 What is a molecule. Give example? Question 2 How do atoms usually exist? Question 3 Why atoms form molecules or ions? Question 4 Define covalent bond? Question 5 What is meant by molecule of an element? Question 6 What is meant by molecule of a compound? Question 7 Define the term atomicity? Question 8 What are monoatomic molecules.Give … [Read more...] about Molecules
Question 1 How is the size of an atom indicated? Question 2 Define atomic mass unit? Question 3 What is the mass of hydrogen atom? Question 4 Name the element used as a standard for atomic mass scale? Atomic Mass of an Element Actual masses of the atoms of the elements are very very small. For Example : The atom of hydrogen has a mass of 1.6727 x 10-27 kg. It is … [Read more...] about Atomic Mass
Question 1 Define atoms? Question 2 What is atomic radius? Question 3 What do you mean by symbol of an element? Question 4 Name the unit in which the radius of an atom is usually expressed? ATOMS All the matter is made up of atoms. An atom is the smallest particle of an element that can take part in a chemical reaction. Atoms of most of the elements are … [Read more...] about Atoms and Elements
