![subject](/tpl/images/cats/himiya.png)
Chemistry, 31.08.2019 19:00 birdman37361
How many protons are in the radioactive isotope 40/19 k ? 40 19 21 20
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 10:00
The tendency of water molecules to stick together is referred to as a) adhesion b) polarity c) cohesion d) transpiration e) evaporation
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 21:30
What is another way to determine mass times acceleration?
Answers: 1
![question](/tpl/images/cats/himiya.png)
You know the right answer?
How many protons are in the radioactive isotope 40/19 k ? 40 19 21 20...
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.11.2020 05:00
![question](/tpl/images/cats/mat.png)
Mathematics, 21.11.2020 05:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 21.11.2020 05:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 21.11.2020 05:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 21.11.2020 05:00
![question](/tpl/images/cats/mat.png)
Mathematics, 21.11.2020 05:00
![question](/tpl/images/cats/istoriya.png)
History, 21.11.2020 05:00
![question](/tpl/images/cats/health.png)
Health, 21.11.2020 05:00
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 21.11.2020 05:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 21.11.2020 05:00
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.11.2020 05:00