
原子和元素
Authored by Yiu ycp
Science
9th Grade
Used 1+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
可鎚打成薄片而不斷裂的物質具有
展性
延性
高密度
高強度
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
可拉成細絲的物質具有
展性
延性
高密度
高強度
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下是四種元素W、X、Y和Z的熔點。
元 素 熔點 (°C)
W 115
X 660
Y 1085
Z 1538
以上哪種元素最可能是非金屬?
元素 W
元素 X
元素 Y
元素 Z
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下是四種元素W、X、Y和Z的熔點和沸點。
元 素 熔點 (°C) 沸點 (°C)
W –102 –34
X –218 –183
Y 114 184
Z 1085 2562
以上哪種元素最可能是金屬?
元素 W
元素 X
元素 Y
元素 Z
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪種元素是非金屬?
鈷
鎳
鋅
硫
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
元素Y的表面有光澤,在室温下是液體。下列哪種元素最可能是Y?
氖
金
鎂
汞
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪項關於原子的敍述是不正確的?
(1) 原子是電中性的。
(2) 某原子的質量數是該原子內質子和電子的總數目。
(3) 某原子的原子序是該原子內質子的總數目。
(4) 原子內的原子核由質子和電子構成。
只有 (2)
只有 (1) 和 (3)
只有 (1) 和 (4)
只有 (2) 和 (4)
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