QUESTION IMAGE
Question
- test your understanding of isotopes by examining the relationships between the pairs of atoms listed below:
| atom 1 | atom 2 | relationship between atom 1 and atom 2 |
|---|---|---|
| carbon - 12 | $_{6}^{12}c$ | $square$ isotopes<br>$square$ same atom, not isotopes of each other<br>$square$ different element |
| argon - 40 | argon - 41 | $square$ isotopes<br>$square$ same atom, not isotopes of each other<br>$square$ different element |
| $_{5}^{11}b$ | boron - 10 | $square$ isotopes<br>$square$ same atom, not isotopes of each other<br>$square$ different element |
| an atom with 13 protons and 13 neutrons | an atom with 14 protons and 13 neutrons | $square$ isotopes<br>$square$ same atom, not isotopes of each other<br>$square$ different element |
build an atom
1
phet interactive simulations
Step1: 明确同位素概念
同位素是质子数相同而中子数不同的同一元素的不同原子。
Step2: 分析第一组
$_{6}^{12}C$和$_{6}^{13}C$,质子数都是6,中子数分别为6和7,是同位素。
Step3: 分析第二组
Carbon - 12和$_{6}^{12}C$是同一个原子,不是同位素关系。
Step4: 分析第三组
Argon - 40和Argon - 41,都是氩元素,质子数相同,中子数不同,是同位素。
Step5: 分析第四组
$_{5}^{11}B$和Boron - 10,质子数都是5,中子数分别为6和5,是同位素。
Step6: 分析第五组
两个原子质子数都是13,是同种元素,中子数相同,是同一个原子,不是同位素。
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第一组:Isotopes
第二组:Same Atom, Not Isotopes of Each Other
第三组:Isotopes
第四组:Isotopes
第五组:Same Atom, Not Isotopes of Each Other