Chemistry
Senior High
Resolved
為什麼質量÷質量會等於密度？
進階題
D =
二(5x10-16))
1
8.9x1010
(D) ⑩ 已知鐵金屬的密度為8.9g/cm²,求鐵原子核的密度大約為多少 g/cm ?
4
(球體體積=r²,r:球體半徑;提示:原子質量÷原子核質量)
3
(A) 8.9×10° (B) 8.9×1010 (C)8.9×102 (D)8.9×105 (E)8.9×107。
IT
-10
11.原子半徑=5×10-"m,原子核半徑
=5×10-6m,原子質量÷原子核質量
⇨原子核密度=
4
-
3
4
(5×10-11)3×8.9
-
=8.9×105 (g/cm²)
3
(5×10-16) 3
Answers
Were you able to resolve your confusion?
Users viewing this question
are also looking at these questions 😉
體積乘以密度等於質量