Describe how to write an ion

Cations (positively-charged): With a superscript + (e.g. )

Anions (negative-charged): With a superscript - (e.g. )

Explanation:

An ion is an atom that carries some sort of negative or positive charge due to losing or gaining electrons in bonding with another atom. A cation, a positively-charged ion, loses an electron in the bonding process, and is written with a small plus sign superscript, while an anion, a negatively-charged ion, is written with a small minus sign. For example, a sodium cation in a sodium chloride molecule would be written like , and the corresponding chloride anion would be written like )

number of molecules / avogadro's number * molecule molecular = mass

explanation:

we define a gram-molecular weight as the mass of one mole of any element or compound. a mole contains avogadro's number of units (molecules) –  

6.022

x

10

23

. so, dividing the number of molecules by avogadro's number gives us the number of moles. multiplying that by the molecular weight gives us the mass. from the periodic table we find the gram-molecular weight of u to be238 and of f to be19. so,  

u

f

6

will have a gram-molecular weight of 352g.