
課題二 微觀世界I
Quiz
•
Chemistry
•
7th - 9th Grade
•
Practice Problem
•
Hard
Chemistry Aristo
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪項有關3919X原子的陳述正確?
A. 它含有19個中子。
B. 它含有20個質子。
C. X位於周期表中的第I族。
D. X是非金屬。
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
元素Y擁有兩種天然同位素:10Y和11Y,它們的相對豐度分別是19.7%和80.3%。Y的相對原子質量是多少?
A. 10.4
B. 10.6
C. 10.8
D. 11.0
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
物種P和Q所含的次原子粒子數目如圖所示。
下列哪項有關P和Q的陳述正確?
A. P是Q的陰離子。
B. Q是P的陰離子。
C. P是Q的陽離子。
D. Q是P的陽離子。
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
元素Z的原子序是9。下列哪種元素的化學性質與Z相似?
A. 鈉
B. 鎂
C. 硅
D. 氯
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪種物質具有巨型共價結構?
A. 二氧化硫
B. 二氧化硅
C. 氯化銫
D. 銅
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪幅電子結構圖正確?
(圖中只顯示最外層電子。)
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
元素X和Y的原子序分別是7和17。下列哪項是由X和Y生成的化合物的正確化學式?
A. XY
B. XY2
C. XY3
D. XY4
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