Question

type the element in each list with the largest atomic mass: n, li, be br, f, at o, se, te si, cl, b

Explanation:

Step1: Recall atomic mass trends

Atomic mass generally increases as we move down a group and across a period (left - to - right) in the periodic table.

Step2: Analyze N, Li, Be

N (nitrogen) has atomic number 7, Li (lithium) has atomic number 3, Be (beryllium) has atomic number 4. From the periodic table, N has the largest atomic mass among them.

Step3: Analyze Br, F, At

Br (bromine), F (fluorine), At (astatine). At is at the bottom - most position in Group 17 among them, so At has the largest atomic mass.

Step4: Analyze O, Se, Te

O (oxygen), Se (selenium), Te (tellurium). Te is the bottom - most element in Group 16 among them, so Te has the largest atomic mass.

Step5: Analyze Si, Cl, B

Si (silicon), Cl (chlorine), B (boron). Cl has a higher atomic number and is further right in the periodic table among them, so Cl has the largest atomic mass.

Answer:

N
At
Te
Cl