![subject](/tpl/images/cats/himiya.png)
Chemistry, 30.11.2020 18:30 aangishah8452
21. Which statement about one atom of an element identifies the element? A) The atom has 1 proton. B) The atom has 2 neutrons. C) The sum of the number of protons and neutrons in the atom is 3. D) The difference between the number of neutrons and protons in the atom is 1.
![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)
Chemistry, 22.06.2019 04:00
What three natural resources are found in the great lakes region
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 04:30
Which is a chemical property of iron? a. it forms iron oxide (rust) when exposed to moisture and air. b. it is a gray–black metal that is hard to the touch. c. it has a melting point of 2795°f (1536°c). d. it is a good conductor of heat
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 06:00
The tilt of the earth's axis of rotation is responsible for the a) ocean's tides. b) size of the moon. c) brightness of stars. d) earth’s seasons.
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 14:30
The valence of aluminum is +3, and the valence of the chlorine is -1. the formula fir the aluminum chloride is correctly written as
Answers: 2
You know the right answer?
21. Which statement about one atom of an element identifies the element? A) The atom has 1 proton. B...
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 03.12.2020 22:50
![question](/tpl/images/cats/mkx.png)
Arts, 03.12.2020 22:50
![question](/tpl/images/cats/mat.png)
Mathematics, 03.12.2020 22:50
![question](/tpl/images/cats/en.png)
English, 03.12.2020 22:50
![question](/tpl/images/cats/fizika.png)
Physics, 03.12.2020 22:50
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 03.12.2020 22:50
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 03.12.2020 22:50
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 03.12.2020 22:50
![question](/tpl/images/cats/mat.png)
Mathematics, 03.12.2020 22:50
![question](/tpl/images/cats/mkx.png)
Arts, 03.12.2020 22:50
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 03.12.2020 22:50