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Maximum of 8 electrons in second energy level.
Calcium atoms have 8 electrons in the second energy level. However, they are not the valence electrons. The outermost electrons in a calcium atom in the ground state are 2 4s electrons. So calcium atoms in the ground state have 2 valence electrons in the fourth energy level.
The second energy level of atoms can hold a maximum of 8 electrons.
Carbon. Carbon is in the second period, so it has electrons in its second energy level, and it is in the fourth group in the second energy level, so it has 4 electrons.
Oxygen atoms contain exactly two unpaired electrons. This is because oxygen has 6 total electrons, with 2 in the first energy level and 4 in the second. Two of the electrons in the second energy level are unpaired.
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).
Carbon atoms have a total of six electrons. In a neutral carbon atom, these electrons are arranged with two in the first energy level (the innermost shell) and four in the second energy level, allowing for the formation of four covalent bonds with other atoms.
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.
A boron atom has three electrons in its second energy level.
if you're talking about atoms, 8 electrons can sit in the second energy level. two sit in the 2s orbital and 6 in the 2p orbital.
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.