Electrons and bonding Flashcards
Why do noble gases dont react easily?
Because they have a full outer shell and a stable electron configuration.
What is ionic bonding?
Electrostatic attraction between two oppositely charged electrons.
What is electrostatic attraction?
The force experienced between two oppositevely charged electrons.
What holds the ionic bonding together?
Electrostatic forces which is the force experienced by two oppositevely charged particles. It holds the particles together.
What is a giant ionic lattice?
An arrangement of positive and negative Ions.
What is the strength of electrostatic forces dependant on?
The ionic charge and ionic radii of the ions.
When an atom has more electrons it will have more shells which means the radius is bigger.
Why is the force weaker if the ionic radius is bigger?
Because the ionic charge is spread over a large surface area.
What makes an atom has more of an electronegativity?M
More protons as the nucleus will attract more electrons.
What is electronegativity?
The tendancy of an atom to attract a bonding pair electrons.
What is a polar molecule?
When one of the atoms gets a bigger share of the electrons than the other.
What does a polar molecule be known for?
Know for unequal number of electrons shared.
What are the charges of the polyatomic Ions?
CO32-, SO42-,NO3-,OH-.
What does the strength of an ionic bond depend on?
It depends on the the charges and the size, the more the charge the more the force, the more the size, the weaker the force because the charges are spread out and the less the size the more the force as the ionic charges and the opposite charges are closer to each other.
What is the difference between an ion and a neutral atom?
An ion has an either overall positive or negative charge. A neutral atom has en equal number of charge.
How is a covalent bond formed?
By mutual sharing of electrons between atoms. They share an electron.
