Explanation:
You can simply subtract the atomic number from the mass number in order to find the number of neutrons. If the atom is neutral, the number of electrons will be equal to the number of protons.
Remember!
1. Your mass number is the total number of neutrons and protons within the atom.
2. Your atomic number is the amount of protons within the atom.
3. For neutral atoms, the electron number is the same as the atomic number.
A more ethical approach to athletics is sportsmanship. Under a sportsmanship model, healthy competition is seen as a means of cultivating personal honor, virtue, and character. It contributes to a community of respect and trust between competitors and in society. The goal in sportsmanship is not simply to win, but to pursue victory with honor by giving one's best effort.
Answer:
C. 90°
Explanation:
The critical angle is that angle of incidence in the dense medium where the angle of refraction is 90°.
In this case, light travels from the more optically dense medium to the less optically dense medium.
When the angle of incidence in the dense medium is equal to the critical angle, the angle of refraction is 90°.
Joule (J) is the metric unit for energy