the great bombardment was an galtic event that rained down meteors on the planets of this solar system in vast numbers. some have speculated that this was a time our solar system moved through a dense particle mass of asteroids. as our solar system revolves around the galtic core and that core revolves around the universal core. when this happenened is difficult to ratify a time line for it only happened once. where later as a common event our solar system picks up the occasional asteroid or 2 now that have become trapped in gravitational forces and become an elliptical orbit of our sun. this also would explain the more then 200 other planetoid bodies we have out past Pluto. some believe that this is where we picked up our satellite moon around terra firma.
still others say the great bombardment is an event when we pass through our own solar systems asteroid mass located in-between planetary bodies. it is speculated that a comet of great size took out one of the solar systems planetary bodies where when it broke up, planets pass through the mass every so often until such time the asteroid mass has reached orbital unity. and we call that one the asteroid belt. much like the asteroid belt that orbits Saturn. our solar systems main massive asteroid belt is located between mars and Saturn.
and even yet others have speculated an ancient galtic war once occurred. the use of asteroid masses for bombardment is in relation to the time line of the number of impacts we have counted over our sister planets and moons.
and still further some belive the impacts of the great bombardment were a result during the creation of this solar system.
The late heavy bombardment, thought to have caused most of the Moon's craters happended 3800 to 4100 million years ago.
Early in its history, the Moon was under constant bombardment by space debris. The intense heat generated by these numerous impacts melted the Moon to great depths.
A nuclear reaction between an uranium isotope (e.g. uranium 238) and deuterons.
For all intents Mercury has no atmosphere, although there must be metallic vapors on the sunward side.
when molecule subjected to fast atom bombardment it can forms cations or anions mostly cations.those are called as fragments
The answer that you wish to acquire is ionization energy. pretty sure at least. ;)
Bombardment of Alexandria happened in 1882.
Bombardment of Mogador happened in 1844.
Bombardment of Brussels happened in 1695.
Bombardment of Genoa happened in 1684.
The bombardment of gunfire never stopped!
Bombardment of Ellwood happened on 1942-02-23.
Bombardment of Yeonpyeong happened on 2010-11-23.
Bombardment of Papeete happened on 1914-09-22.
Bombardment of Upolu happened on 1841-02-24.
Bombardment of Kagoshima happened on 1863-08-15.
Bombardment of Tourane happened on 1847-04-15.
Bombardment of Tangiers happened on 1844-08-06.