Answer:
Rotation: spins on its axis
Revolution: travels around another object
Explanation:
The Earth rotates on its axis, while it revolves around the sun.
The moon revolves around the Earth.
26
protons equal identity
Answer:
C. 1 proton 3 neutrons
Explanation:
A nucleus is more stable if the ratio of the neutrons to protons is between 1:1 and 1:1.5.
Thus the ratios of neutrons to protons for the nuclei are as follows
A- 1:1
B- 1:1
C- 1:3
D- 1:2
Among these ratios, C is the greatest thus the nucleus is the least stable.