![subject](/tpl/images/cats/himiya.png)
Chemistry, 08.09.2021 16:00 Jamuel3761
3. X is a particle with 18 electrons and 20 neutrons.
Which of the following particles could be X?
1: Ar >
2: 40Ca2+
3: 39K
A. 1, 2 and 3
B. Only 1 and 2
C. Only 2 and 3
D. Only 1
![ansver](/tpl/images/cats/User.png)
Answers: 3
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 04:00
Acontainer holds 35.8 moles of gas under 10.0 atm of pressure at 70.0 c. what is the volume of the container?
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 08:30
Which change in temperature is the smallest? a change of 1 thomson degree a change of 1 kelvin degree a change of 1 fahrenheit degree a change of 1 celsius degree
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 10:00
What is the atomic mass of an atom that has 6 protons, 6 neutrons, and 6 electrons? a) 6 b) 8 c) + 1 d) 12 e) 18
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 10:30
Use this information to determine the number of calends electrons in the atoms. which of the following correctly compares the stability of the two atoms? a) both are unreactive b) both are highly reactive c) a is unreactive and d is reactive d) a is reactive and d is unreactive
Answers: 2
You know the right answer?
3. X is a particle with 18 electrons and 20 neutrons.
Which of the following particles could be X?...
Questions
![question](/tpl/images/cats/biologiya.png)
Biology, 23.09.2019 22:30
![question](/tpl/images/cats/mat.png)
Mathematics, 23.09.2019 22:30
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 23.09.2019 22:30
![question](/tpl/images/cats/geografiya.png)
Geography, 23.09.2019 22:30
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 23.09.2019 22:30
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 23.09.2019 22:30
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 23.09.2019 22:30
![question](/tpl/images/cats/istoriya.png)
History, 23.09.2019 22:30
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
History, 23.09.2019 22:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 23.09.2019 22:30