Outstanding Investigates the differences
between ionic and covalent
compounds through modelling
the shapes of covalent molecular
substances. Provides a thorough
and comprehensive explanation
which addresses the cause of
different shapes of compounds.
Provides examples of different
shaped compounds with
explanation.

Molecular compounds are formed of discrete, neutral molecules, while ionic compounds are formed of large repeating arrays of opposite charges.

answer

fusion: the energy source of stars. the energy released from the collapse of the gas into a protostar causes the center of the protostar to become extremely hot. when the core is hot enough, nuclear fusion commences. fusion is the process where two hydrogen atoms combine to form a helium atom, releasing energy.

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