read the passage about atomic radius. the size of an elements atoms is described by its atomic radius, the…

read the passage about atomic radius. the size of an elements atoms is described by its atomic radius, the distance from the center of an atom to its outermost electrons. atomic radius is related to the number of protons and electrons the atom contains. going from left to right across a period on the periodic table, the number of protons is increasing, which pulls the electrons closer to the nucleus, making the radius decrease. however, going down a group on the periodic table, the number of shells containing electrons increases, which reduces the attraction of the nucleus on the outermost electrons, making the radius increase. using this information, arrange the elements by increasing order of atomic radius, starting with the element with the smallest radius. oxygen (o) tellurium (te) selenium (se) neon (ne)

read the passage about atomic radius. the size of an elements atoms is described by its atomic radius, the distance from the center of an atom to its outermost electrons. atomic radius is related to the number of protons and electrons the atom contains. going from left to right across a period on the periodic table, the number of protons is increasing, which pulls the electrons closer to the nucleus, making the radius decrease. however, going down a group on the periodic table, the number of shells containing electrons increases, which reduces the attraction of the nucleus on the outermost electrons, making the radius increase. using this information, arrange the elements by increasing order of atomic radius, starting with the element with the smallest radius. oxygen (o) tellurium (te) selenium (se) neon (ne)

Answer

Explanation:

Step1: Locate elements on periodic table

Oxygen (O) is in period 2, group 16; Neon (Ne) is in period 2, group 18; Selenium (Se) is in period 4, group 16; Tellurium (Te) is in period 5, group 16.

Step2: Apply periodic - table trends

Across a period, atomic radius decreases. Since Ne is to the right of O in period 2, Ne has a smaller radius than O. Down a group, atomic radius increases. Since Se is below O and Te is below Se in group 16, Se has a larger radius than O and Te has a larger radius than Se.

Answer:

Neon (Ne), Oxygen (O), Selenium (Se), Tellurium (Te)