What are the number of energy levels and the number of electrons at the external energy level in the arsenic atom?
| November 29, 2020 | education
the number of energy levels is equal to the number of the period, therefore, arsenic has four of them. the number of electrons at the external energy level in this case can be equated to the group number (since arsenic is an element of the main subgroup), so there will be five of them.
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