which element has the same number of valence electrons as bromine?

Fluorine, chlorine, iodine, astitine all have 7 valence electrons along with bromine.

To determine which element has the same number of valence electrons as bromine, we first need to know the atomic number of bromine. The atomic number of an element tells us the number of protons in its nucleus, and it is also equal to the number of electrons in a neutral atom.

The atomic number of bromine is 35, so a neutral bromine atom contains 35 electrons. To find out the number of valence electrons, we need to look at the periodic table.

Bromine is in Group 17 of the periodic table, also known as Group VIIA or the halogens. Elements in this group have seven valence electrons because they have seven electrons in their outermost energy level.

Therefore, any element in the same group as bromine (Group 17) will also have seven valence electrons. Some examples of elements in Group 17 include chlorine (atomic number 17), iodine (atomic number 53), and astatine (atomic number 85). All of these elements have the same number of valence electrons as bromine.

To determine which element has the same number of valence electrons as bromine, we first need to identify the number of valence electrons in bromine.

Bromine (Br) is in group 17 of the periodic table, also known as the halogens. The number of valence electrons in an element can be determined by looking at the group number. In the case of the halogens, their group number is equal to the number of valence electrons.

Therefore, bromine has 7 valence electrons.

Now, let's identify the element that also has 7 valence electrons.

Looking at the periodic table, we find that nitrogen (N) is in the same group as bromine — group 15. Hence, nitrogen is the element that has the same number of valence electrons as bromine, which is 7.