What are the symbols of the family of elements that have seven electrons in their outermost energy level?
That is group 17 (or group VIIA depending upon the system you are using). Those are the halogens. F, Cl, etc. Here is a periodic table. You can look them up. www.webelements.com
To determine the symbols of the elements with seven electrons in their outermost energy level, we need to look at the periodic table. The outermost energy level is also known as the valence shell or valence electron shell.
Step 1: Locate the element with atomic number 7.
Look for the element with atomic number 7, which is nitrogen (N). Nitrogen is the 7th element on the periodic table.
Step 2: Examine its electron configuration.
Nitrogen's electron configuration is 1s² 2s² 2p³. This means that there are two electrons in the 1s orbital, two electrons in the 2s orbital, and three electrons in the 2p orbital. The 2p orbital is the outermost energy level or valence shell for nitrogen.
Step 3: Determine the number of electrons in the valence shell.
Count the number of electrons in the outermost energy level, which in this case is 3. This number represents the number of valence electrons for nitrogen.
Step 4: Identify the symbol using the periodic table.
The symbol for nitrogen is N. Therefore, N represents the element with seven electrons in its outermost energy level.
So, the symbol of the element with seven electrons in its outermost energy level is N.