type the element in each list with the largest atomic mass: n, li, be; br, f, at; o, se, te; si, cl, b
type the element in each list with the largest atomic mass: n, li, be; br, f, at; o, se, te; si, cl, b
Answer
Explanation:
Step1: Recall atomic - mass trend
Atomic mass generally increases down a group and across a period (left - to - right) in the periodic table.
Step2: Analyze the first group (Si, Cl, B)
Boron (B) has atomic number 5, silicon (Si) has atomic number 14, and chlorine (Cl) has atomic number 17. Si has a larger atomic mass than B and Cl among them.
Step3: Analyze the second group (O, Se, Te)
Oxygen (O) has atomic number 8, selenium (Se) has atomic number 34, and tellurium (Te) has atomic number 52. Te has the largest atomic mass among them.
Step4: Analyze the third group (Br, F, At)
Fluorine (F) has atomic number 9, bromine (Br) has atomic number 35, and astatine (At) has atomic number 85. At has the largest atomic mass among them.
Step5: Analyze the fourth group (N, Li, Be)
Lithium (Li) has atomic number 3, beryllium (Be) has atomic number 4, and nitrogen (N) has atomic number 7. N has the largest atomic mass among them.
Answer:
Si, Te, At, N