2.2.1 Electron structure and 2.2.2 Bonding Flashcards
how many orbitals do S subshells contain
1
how many orbitals do P subshells contain
3
how many orbitals do D subshells contain
5
how many orbitals do F subshells contain
7
How to work out max number of electrons in shell
2n^2
what does n stand for
shell number
Aufbau principle
electrons enter lowest energy orbital available
isoelectronic definition
ion has the same number of electrons as an element
dative covalent bond definition
one atom gives 2 electrons to share instead of 1
what elements do metallic bonding
metals only
why do metals have high melting point
as there’s a large amount of energy needed to break electrostatic forces of attraction between them
structure of a metallic bond
giant metallic lattice
regularly spaced ions in fixed position
free moving delocalised electrons
do metals conduct electricity
yes when solid or molten as they have free delocalised electrons
what causes high charge density
small ionic radius and high charge
what does a high charge density cause
stronger electrostatic forces
ion definition
charged particle
when atom has more or less electrons
why do ionic compounds conduct when molten but not solid
when solid ions can’t move but when molten they’re free to move when dissolved in water
ionic bonding definition
electrostatic attraction between oppositely charged ions
pair of electrons not involved in covalent bond
lone pair
covalent bond
non metals sharing electrons to form molecules
electrostatic forces