1 Copy and complete using the words below:
electrons, full, Group, lose, noble, unreactive
The elements in 0 of the Periodic Table are called thegases. They are generally . because they have aouter shell of electrons. So they do not need to gainor share ___ with other atoms.

The elements in__Group_ 0 of the Periodic Table are called the_noble__gases. They are generally __unreactive_. because they have a__full_outer shell of electrons. So they do not need to gain__lose_or share _electrons_ with other atoms.

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.

hope it

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