Table of Contents
- 1 What are the conditions for ionic bonding?
- 2 What is the basic rule for working out the formula of an ionic compound?
- 3 What conditions favor the formation of ionic compounds from elements?
- 4 What are the favorable conditions for the formation of ionic bonds ie for metals and VE Ege for NM?
- 5 What are the two basic rules to writing a formula for a binary compound?
- 6 How do you explain formula to kids?
What are the conditions for ionic bonding?
Two atoms must be different. Ionization potential of one atom must be small. Electron affinity of second atom must be high. Electro negativity of second atom must be high.
What is the basic rule for working out the formula of an ionic compound?
Working out a formula The formula for an ionic compound must contain the same number of positive and negative charges so that the charges are balanced and it is neutral overall.
What conditions favor the formation of ionic compounds from elements?
The favourable condition for the formation of ionic bond is: Low ionization energy of metal so that it will easily lose electrons to form cation. High electron affinity of non-metal so as it could accept the electron and form an anion.
What are the necessary conditions to an atom to form a cation?
The two elements must be of opposite charge, one negatively charged (anion) and the other positively charge (cation).
What are the condition that an element will become compound?
Elements combine to form chemical compounds that are often divided into two categories. Metals often react with nonmetals to form ionic compounds. These compounds are composed of positive and negative ions formed by adding or subtracting electrons from neutral atoms and molecules.
What are the favorable conditions for the formation of ionic bonds ie for metals and VE Ege for NM?
For formation of an ionic bond, the low IP of metal and high EA of non – metal are the required conditions. Elements having low ionisation energies have more chances to form a cation, thus, showing a greater tendency to form ionic bonds. So, the lower ionization energy of metals favours the formation of an ionic bond.
What are the two basic rules to writing a formula for a binary compound?
To write the formula of a binary ionic compound, first write the symbol of the cation and then the anion. Then add subscripts as needed to balance the charges. To name any binary ionic compound, place the cation name first, followed by the anion name.
How do you explain formula to kids?
A formula is a group of mathematical symbols and numbers that show how to work something out. Examples include formulae for calculating the perimeter and area of 2D shapes and how to work out the volume for 3D shapes.