The ampere (A) The ampere is the SI base unit of electrical current. ...The candela (cd) The candela is the SI base unit of luminous intensity. ...The kelvin (K) The kelvin is the SI base unit of thermodynamic temperature. ...The kilogram (kg) The kilogram is the SI base unit of mass. ...The metre (m) ...The mole (mol) ...The second (s)
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Bromine 35
Chlorine 17
Flourine 9
Iodine 53
Astatine 85
1 gram = 1000 mg
=>
1 mg = 1/1000 g
25 mg = 25* (1/1000) g = 25/1000 g = 0.025g
