Question 4 4 pts
Look at the image below. Which one of these yenetic Lews Dot Diagrans best
represents CH? Qust type the appropriate red number)
1
2
2
XX
A:!
乡
Z
:A:%:%:%:
a
9
10
11
::
::A:X:
::A:/:
X:A:X
:/:
x
ASAP please quick

The answer should be vaporization 

Answer : option a) 84explanation :

considering the question as per the attachment

here we can see that the radon nuclide has 222 as the atomic mass number and 86 as the atomic number.

when it undergoes nuclear fission it gives polonium which has atomic mass number as 218 and atomic number will be 84 along with a helium nucleus which has 4 atomic mass number and 2 as its atomic number.

222 = 218 + 4 (atomic mass number)

86 = ? + 2; therefore ? = 86-2 = 84.

the atomic mass number of polonium will be 84.

The molar mass of a substance is defined as the mass of 1 mol of that substance, expressed in grams per mole, and is equal to the mass of 6.022 × 10 23 atoms, molecules, or formula units of that substance.

Heat of fusion= heat/mass  heat of fusion = 12.03kj/36 g= 0.3342 kj/g or 334.2 j/g