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How many energy levels are in an electrically neutral sodium atom?
An electrically neutral sodium atom has 3 energy levels.
Which element has a full energy level of only 2 electrons helium oxygen fluorine?
Helium has a full energy level with only 2 electrons. Oxygen and fluorine require more electrons to fill their energy levels.
Electrons of the 19th element?
The 19th element is potassium, which has 19 electrons. These electrons are distributed in energy levels or shells around the nucleus following the rules of electron configuration.
What is the neutral atom that has its first two energy levels filled has 6 electrons in its third energy level and has no other electrons?
The neutral atom with the specified electron configuration has 10 electrons in total. This atom is neon (symbol: Ne), which has a total of 10 electrons and has its first two energy levels filled with 2 and 8 electrons, respectively, while the third energy level contains 6 electrons.
What element has 5engry levels and is in group 2?
The element that has 5 energy levels and is in group 2 of the periodic table is Calcium (Ca). It has 20 electrons in total, with 2 in the first energy level and 8 each in the second and third energy levels, and 2 in the fourth energy level.
