Write the isotope notation and word form for the isotope of neon that has an atomic mass of 22.

The right answer is , Neon 22.

The second rare gas in the periodic table, neon, has an atomic number of 10, it gave its name to neon tubes and to a variety of fluorescent tubes.

Neon has three stable isotopes, 20Ne (the most abundant), 21Ne, and 22Ne, and a standard atomic mass of 20,1797 u.

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.