Based on their locations on the periodic table, which best compares the properties of the metalloids arsenic (As) and antimony (Sb)?Arsenic has a more metallic behavior than antimony because arsenic’s atoms have fewer electron shells. Arsenic has a more metallic behavior than antimony because arsenic’s atoms have more electron shells. Arsenic has a more nonmetallic behavior than antimony because arsenic’s atoms have more electron shells. Arsenic has a more nonmetallic behavior than antimony because arsenic’s atoms have fewer electron shells.

a electronegativity decreases beacuse the size of nucleus is bigger.

pv=nrt

explanation:

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.