Attomic Structure Flashcards
What is the symbol for atomic Number and where is it displayed in notation of the element?
Symbol: Z
Displayed: bottom left
what is the symbol for atomic mass number and where is it displayed in notation of the element?
Symbol: A
Displayed: Top Left
What is a Nuclion?
it is a Proton + a Nutron
What is an Atomic Radius?
It is the Half the distance between two covalently bonded atoms
What is Ionic Radius
the distance between the nucleus and the outer most energy level
what ar the trends of Atomic Radius
They increase down groups
They decrease along rows
what are the trends of ionic radius
increases with increasing negative charge
decreases with decreasing negative charge
what shape does an S orbital have and how many electrons can it hold? how many orbitals does it have
Circular shape and 2 electrons
1 orbital
what is the shape of a P orbital? How many electrons does it have and how many orbitals does it have
A dumbbell shape
it holds 6 electrons
it has 3 orbitals
how many electrons can a D subshell hold and how many orbitals does it have?
it holds 10 electrons and has 5 orbitals
which subshell comes first 3D or 4S?
4S
what is spin pair repulsion
it is when two electrons in the same orbital are spinning in the opposite direction to each other creating a greater force of repulsion
what is a free radical and how is it shown?
A free radical is one or more unpaired electron around an atom, it is shown with a dot next to the element
ionization energy deffenition
the amount of energy required to remove one mole of electrons from one mol of atoms to form one mol of ions
what factors effect ionisation energy?
Size of the nucleus
Distance of outer electrons from the nucleus
Shielding effect of inner electrons
