1. Consider the information concerning particle X and particle Y listed below:
Particle
Number of protons
Number of electrons
Number of neutrons
X
16
16
18
Y
16
18
18
Which of the following statements is correct?
A. X and Y are atoms of the same element.
B. X and Y are atoms of different elements.
C. X is a cation of Y.
D. Y is an anion of X.
※試解釋各點對與錯的原因※
一條簡單的化學問題
2010-02-23 6:02 am
回答 (2)
2010-02-23 6:40 am
✔ 最佳答案
A系錯的因為Y有16protons同18electrons 所以Y唔系atom.佢地系same element但只有X系atom.B系錯的因為X同Y都系有16protons所以佢地系same element.
C系錯的因為X嘅protons同electrons 數目相同所以系atom唔系cation
D系答案 因為Y有16protons同18electrons.姐系Y系X2-因為X同Y系same element
只系Y多左2粒electrons 所以Y系X的anion
參考: 自己
2010-02-23 6:32 am
Correct answer :A
Both of them are sulfur. Particle X is neutral atom(no electric charge), while particle Y is an ion( electric change there is -2). The electric charge of sulfur can be like this.
B
If they are different elements, like sulfur and chlorine, chlorine do not have this electric charge. And one of the number(protons/electrons)should be the same. If you keep same (argon have 18electrons.),but argon do not have this kind of ion,so it is wrong.
Both of them are sulfur. Particle X is neutral atom(no electric charge), while particle Y is an ion( electric change there is -2). The electric charge of sulfur can be like this.
B
If they are different elements, like sulfur and chlorine, chlorine do not have this electric charge. And one of the number(protons/electrons)should be the same. If you keep same (argon have 18electrons.),but argon do not have this kind of ion,so it is wrong.
參考: ilovescienceclub^^
收錄日期: 2021-04-19 21:27:20
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