SI units conversions

Deci

0.1 or 1×10^-1 meters (or whatever your base unit is)

Centi

1×10^-2 meters (or whatever your base unit is) also 0.01

Milli

1×10^-3 meters (or whatever your base unit is) also 0.001

Micro

1×10^-6 meters (or whatever your base unit is)

Nano

1×10^-9 meters (or whatever your base unit is)

Pico

1×10^-12 meters (or whatever your base unit is)

Tera

1×10¹² meters (or whatever your base unit is)

Giga

1×10⁹ meters (or whatever your base unit is)

Mega

1×10⁶ meters (or whatever your base unit is)

Kilo

1×10³ meters (or whatever your base unit is)

Hecta

1×10² meters (or whatever your base unit is)

Deka

1×10¹ meters (or whatever your base unit is)

What symbol is this

Micro

What symbol is this

Giga

What symbol is k?

Kilo

What symbol is p?

Pico

What symbol is n?

Nano

What symbol is M?

Mega

What symbol is T?

Tera

Formal charge equals

(Number of valence electrons on a neutral atom on the periodic table) — (number of valence electrons assigned)

# of valence electrons assigned =

# of electrons in lone pairs + 1/2(# of electrons in bonds)

What is the electron pair geometry of a molecule with 2 electron domains?

Linear

What is the electron pair geometry of a molecule with 3 electron domains?

Trigonal planar

What is the electron pair geometry of a molecule with 4 electron domains?

Tetrahedral

What is the electron pair geometry of a molecule with 5 electron domains?

Trigonal bipyramidal

What is the electron pair geometry of a molecule with 6 electron domains?

Octahedral

What is the molecular geometry of a molecule with 3 electron domains and 1 lone pair?

Bent

What is the molecular geometry of a molecule with 4 electron domains and 1 lone pair?

trigonal pyramidal

What is the molecular geometry of a molecule with 4 electron domains and 2 lone pairs?

bent (v-shaped)

What is the molecular geometry of a molecule with 5 electron domains and 2 lone pairs?

T-shaped

What is the molecular geometry of a molecule with 5 electron domains and 1 lone pair?

Seesaw

What is the molecular geometry of a molecule with 5 electron domains and 3 lone pairs?

Linear

What is the molecular geometry of a molecule with 6 electron domains and 1 lone pairs?

square pyramidal

What is the molecular geometry of a molecule with 6 electron domains and 2 lone pairs?

square planar

Equation to calculate energy of a photon/ change in energy between energy transitions

Equation to calculate the wavelength from the change in energy

Equation to calculate v from energy

Equation to calculate wavelength using h and c

Equation to calculate v from wavelength