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How many electrons can there be in each of the four shells surrounding an atom?
The first shell can hold up to 2 electrons, the second shell can hold up to 8 electrons, the third shell can hold up to 18 electrons, and the fourth shell can hold up to 32 electrons.
How many electrons does a complete valance shell hold?
A complete valence shell typically holds 8 electrons. However, for elements in the first two rows of the periodic table, the valence shell can hold a maximum of 2 electrons in the first shell and 8 electrons in the second shell.
How many shells do 20 electrons need?
20 electrons would need 4 shells. The first shell can hold up to 2 electrons, the second shell can hold up to 8 electrons, the third shell can hold up to 18 electrons, and the fourth shell can hold up to 32 electrons.
How many electrons can each of the three shells hold in respective order from lowest to highest?
The first shell can hold up to 2 electrons, the second shell can hold up to 8 electrons, and the third shell can hold up to 18 electrons.
How many electrons can the second shell of an atom hold?
The second shell of an atom can hold a maximum of 8 electrons.
