Chemical bonding and molecules Flashcards
What is a cation?
A positively charged ion
What is an anion
A negatively charged ion
An ionic bond is when a cation and an…….
anion are attracted to each other.
Which elements will form Cations (on the periodic table)
Ones with a valance level of 1-3
Those elements with a valance energy level of 1-3 will lose electrons. True or false
true, they become 1+ or 2+ or 3+ as the electrons get lost and there is more positive protons.
Which elements will form Anions (on the periodic table)
Those with a valance energy level of 5 - 8
Those elements with a valance energy level of 5 - 8 will gain electrons. True or false
True. Valance electrons try to get 8 electrons in the outer shell. So for example Nitrogen has 7 protons and 7 electrons, the valance level is 5. So we need 3 more electrons in the valance to make up the optimum of 8. So we now have 3e+5e equals 10 electrons and 7 Protons. So we have a charge of N-3 (3 more electons than protons)
Anions are mainly non-metals (true or false)
True
Ionic bonds form…
neutral molecules
What are covalent bonds
Between non-metals only
What are ionic bonds
Between metal and non-metal
When atoms are not neutral they become
ionized
Ions are stable and complete but become very
reactive (can interact with other ions quickly) it’s also a reactive compound.
Ionic bonding. you bond differently charged particles which create a
chemical bond
The biggest difference between covalent bonding and ionic bonding is
In covalent bonding, the electrons are shared. In ionic bonding, the electrons are transferred or lost. (TO COMPLETE THE OUTER ENERGY LEVEL Valence.
