8 electrons
The second energy level can hold a maximum of 8 electrons. Magnesium has 12 electrons, so in its second energy level, there will be 8 electrons (2 in the first energy level and 8 in the second energy level).
In the second energy level of an atom, there can be a maximum of 8 electrons. Magnesium has 12 electrons in total, with 2 electrons in the first energy level and 8 electrons in the second energy level.
An atom with seven electrons will have five electrons in the second energy level.
The first energy level can hold a maximum of 2 electrons, filling the 1s orbital. The second energy level can hold a maximum of 8 electrons, filling the 2s and 2p orbitals.
A boron atom has three electrons in its second energy level.
More energy have the electrons in the second level of energy.
More energy have the electrons in the second level of energy.
The second principal energy level can hold a maximum of 8 electrons in total. This is because the second level consists of one s orbital and three p orbitals, which can hold 2 electrons each.
Maximum of 8 electrons in second energy level.
In the second energy level, eight electrons are allowed at most.
There are 8 electrons in the second energy level of magnesium. This can be determined because magnesium has an atomic number of 12, meaning it has 12 electrons in total. The first energy level is filled with 2 electrons, leaving 10 electrons to distribute in the remaining energy levels, with 8 of those in the second level.
There is no third energy level of oxygen, there is only two. The second energy level has 6 electrons.