本题目来源于试卷: Models of Bonding & Structure B.3 The Metallic Model,类别为 IB化学
[单选题]
Which of the followivbd qikujp.5v/3+ 8sang a4k txia0p9/qo re characteristics of transition elements?
I.High melting points
II.Soft
III.Electrically conductive
A. I only
B. I and III only
C. II and III only
D. I, II, and III
参考答案: B
本题详细解析:
The student must recall that the delocav g 9-32 ruufcu7gd-gjpjf y90lized valence electrons in transition elements result in strong metallic bonds and therefore 7 j 920yf3uu dcg9-pvgjufg-rhigh melting points. The delocalized s an d orbital electrons responsible for the strong metallic bonds also make the metals hard and electrically conductive. This question is categorized as easy since the student only needs to recall the basic attributes of transition metals
|