Iron has the chemical formula Fe from its Latin name, ferrum. Its atomic number is 26, and its molar mass is 55.845 grams per mole. It has a metallic gray color and is attracted to magnets. Iron is the second most-abundant metal on Earth.
all of the above is the answer :)
Answer:
BrF3 has 2 lone pairs (4 unshared electrons)
Explanation:
