The atomic number of polassium and
calcium is 19 and 20 respectively and they
belong to the sa...
![subject](/tpl/images/cats/himiya.png)
Chemistry, 23.12.2020 17:20 dbhuggybearow6jng
The atomic number of polassium and
calcium is 19 and 20 respectively and they
belong to the same period.
Who among them would have smaller atomic size
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 21.06.2019 15:00
Which element in the third period would you expect to have the larger atomic radius, sodium (na) or sulfur (s)? a. sodium, because it has a higher effective nuclear charge attracting electrons in fewer energy levels. b. sodium, because it has fewer protons attracting electrons in the same energy levels. c. sulfur, because it has more protons attracting electrons in more energy levels. d. sulfur, because it has a higher effective nuclear charge attracting electrons in the same energy levels.
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 21.06.2019 22:00
Which function is performed by earths atmosphere? a. ultraviolet rays are prevented from reaching the ozone layer. b. earths temperature is raised and moderated by trapping in heat c. charged particles from the sun are prevented from reaching earth. d. magnetic charges from space are prevented from reaching earths surface.
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 09:40
Apiece of copper has a temperature of 75.6 0c. when the metal is placed in 100.0 grams of water at 19.1 0c, the temperature rises by 5.5 0c. what is the mass of the metal?
Answers: 1
![question](/tpl/images/cats/himiya.png)
You know the right answer?
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 20.01.2021 20:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 20.01.2021 20:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mkx.png)
![question](/tpl/images/cats/en.png)
English, 20.01.2021 20:20
![question](/tpl/images/cats/mat.png)
Mathematics, 20.01.2021 20:20
![question](/tpl/images/cats/mat.png)
Mathematics, 20.01.2021 20:20
![question](/tpl/images/cats/biologiya.png)
Biology, 20.01.2021 20:20
![question](/tpl/images/cats/mat.png)
Mathematics, 20.01.2021 20:20
![question](/tpl/images/cats/mat.png)
Mathematics, 20.01.2021 20:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 20.01.2021 20:20
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 20.01.2021 20:20