4. Which element in the 8th column of the periodic table (shown below) has the largest radius? He
Ne
Ar
Kr
Xe
Rn
ОА, Не
O B. Ar
Ос. Хе
OD Rn

space exploration has led to the development and technological improvement of many everyday items. (if this answer is wrong i will find the right answer) : )

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer

water and alcohols have similar properties because water molecules contain hydroxyl groups that can form hydrogen bonds with other water molecules and with alcohol molecules, and likewise alcohol molecules can form hydrogen bonds with other alcohol molecules as well as with water.