Gravity depends on inertia
It's called "Ionic compound"
Answer:
The higher the excitation state, the more energy the electron contains. When an electron absorbs energy, it jumps to a higher orbital. ... An electron in an excited state can release energy and 'fall' to a lower state.
The plane of the Moon's orbit around the Earth is tilted by 5° with respect to the plane of the Earth's orbit around the Sun, the ecliptic. This tilt prevents an eclipse from occurring at every new and full moon. In a lunar eclipse, the observer watches the Earth's shadow fall on the Moon.
The correct answer is A: Formed by the sharing of valance electrons between atoms.
Hope this helps :D