7 Basic Physical Quantity and their SI Units Chemistry Podcast
SI System
7 SI Base Units
Base physical quantity
Symbol for quantity
SI units name
SI units symbol
Length
l
Metre
m
Mass
m
Kilogram
Kg
Time
t
Second
s
Current
I
Ampere
A
Temperature
T
Kelvin
K
Amount of substance
n
Mole
Mol
Luminous intensity
Iv
candela
Cd
Prefixes for SI Units
Multiple
Prefix
Symbol
10-24
Yocto
y
10-21
Zepto
z
10-18
Atto
a
10-15
Femto
f
10-12
Pico
p
10-9
Nano
n
