question 2 is fluorine a metal or a nonmetal? how many valence electrons does a fluorine atom have?
question 2 is fluorine a metal or a nonmetal? how many valence electrons does a fluorine atom have?
Answer
Answer:
Fluorine is a non - metal. A fluorine atom has 7 valence electrons.
Explanation:
Step1: Determine metal or non - metal
Fluorine is in group 17 of the periodic table. Non - metals are located on the right side of the periodic table, and group 17 elements are halogens which are non - metals.
Step2: Find valence electrons
Fluorine has an atomic number of 9. Its electron configuration is 1s²2s²2p⁵. The electrons in the outermost shell (n = 2 in this case) are the valence electrons. 2 + 5=7.