What is wrong with the notation 1s22s22p63s23p63d104s24p21s22s22p63 s23p63d104s24p2 for germanium (atomic number 32)

The 3d orbital was filled before the 4s orbital

Explanation:

The Aufbau principle guides the filling of electrons into orbitals. Usually, electrons are first filled into lower level orbitals before the higher energy orbitals.

The 4s orbital is lower in energy than the 3d orbital hence the 4s orbital is filled first.

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