He said that compounds are formed when atoms of different elements combine
Chemical reaction
You probably mean the molecules formed of atoms in a compound.
All chemical elements (including magnesium) are formed from atoms.
This is the relative atomic mass, which compares other atoms to the mass of I atom of the isotope carbon-12.
Elements are formed from atoms. Atoms are formed of protons, neutrons, and electrons (sub-atomic particles).
Water is a COMPOUND because it is formed from atoms of two elements.
Elements are formed from atoms.
He said that compounds are formed when atoms of different elements combine
the atomic weights on the Periodic Table
the atomic weights on the periodic table
Heavy elements were formed in stars, and blown out into space in supernova explosions.
Such elements are formed within stars. The heavy elements which are currently here on Earth were formed in stars some time ago, and then they were blown into space in supernova explosions.
A molecule is formed
Elements that are formed in cool stars are heavy but not heavier than iron. (Elements that are heavier than iron are formed in a supernova.)
All the compounds existing in the universe are formed.
It is a Gas,and liquid Water is a COMPOUND because it is formed from atoms of two elements.