Covalent Bonding Flashcards
What is a covalent bond (DEFINITION) ?
And electrostatic force of attraction between a shared pair of electrons and positive nuclei (NO CHARGE)
Do covalent molecules have a charge?
No
In chlorine: needs one electron to have a full outer shell. What would they do?
Share an electron with another chlorine atom (creates a single bond)
In oxygen : needs two more electrons to have a full outer shell. What would they do?
Share two electrons with another oxygen atom (creates a double bond)
Covalent bonding in compounds can take place between…
atoms of different elements to create molecules of covalent compounds. These covalent bonds can be single, double or triple
H2O: oxygen needs two more electrons, but hydrogen only needs one more. what would they do?
The oxygen atom shares one electron with one hydrogen atom and a second electron with another hydrogen atom
What types of elements do covalent bonds form between?
2 non-metals
How are low melting and boiling points explained in simple structured covalent bonds?
Little energy is needed to break the intermolecular forces
How is the poor electrical and thermal conductivity explained inthe simple structures of covalent bonding?
Because they have no free electrons or overall charge
How is the lack of conductivity explained in a giant lattice structure of a covalent bond?
They can’t conduct electricity because they have no overall charge
How are high melting and boiling points explained in a giant lattice structure of a covalent bond?
Because it takes a lot of energy to break the strong covalent bonds between the atoms
Give an example of an element that has a giant lattice structure in covalent bonding
Diamond
Give an example of a element with a simple structured covalent bond
Water
