subject
Chemistry, 21.09.2020 02:01 wolfgirl4762

Question 11 1 pts
If a calcium atom has 20 protons, 21 neutrons, and 20 electrons, what is its atomic
number?
40
0 21
O 20
41

ansver
Answers: 2

Another question on Chemistry

question
Chemistry, 21.06.2019 18:00
Temperature and kinetic energy are proportional. a) adirectly b) directly c) indirectly
Answers: 2
question
Chemistry, 22.06.2019 06:30
Particle model to predict what will happen if a sharp object creates a hole in the soccer ball
Answers: 2
question
Chemistry, 22.06.2019 12:00
Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt
Answers: 1
question
Chemistry, 22.06.2019 14:50
How are evaporation and sublimation similar? a both involve the formation of a gas. b both release energy to the surroundings. c both take place throughout a solid. d both take place at the surface of a liquid.
Answers: 1
You know the right answer?
Question 11 1 pts
If a calcium atom has 20 protons, 21 neutrons, and 20 electrons, what is it...
Questions
question
Mathematics, 05.05.2020 22:23
question
English, 05.05.2020 22:23
question
Mathematics, 05.05.2020 22:23
question
Mathematics, 05.05.2020 22:23
Questions on the website: 13722360