Question

Select the elements having identical dot notations (the

same number of valence electrons)
selenium, Se, atomic #34
phosphorus, P, atomic #15
arsenic, As, atomic #33
nitrogen, N, atomic #7
carbon, C. atomic #6
chlorine, Cl, atomic #17

Answer 1

Arsenic phosphorous nitrogen have same valence electrons.

Step-by-step explanation:

Answer 2

Arsenic, phosphorus and nitrogen have identical notations

Step-by-step explanation:

In the periodic table the elements are organized according to their chemical and physical properties of the elements based on their atomic number. There are eighteen vertical columns called Groups and seven horizontal rows called periods. All the elements of the same group have the same number of valence electrons (they are the electrons that are in the last electronic layer, and determine the ease or not with which the elements react chemically with others)

If you locate the six elements mentioned in the periodic table, you observe that the arsenic, the phosphorus and the nitrogen belong to the same group.

This means that the arsenic, the phosphorus and the nitrogen have the same number of valence electrons