Answer:
B
Explanation:
the fluorine has an high tendency to gain electrons from other elements with lower electronegativities
<h2>
Answer:</h2>
Average atomic mass of an element is the sum of the masses of its isotopes each multiplied by its natural abundance
To find the neutrons you add the mass number and the atomic number for neutrons
Hope this helps
-Zayn Malik
Answer is: halogens ans noble gases.
The nonmetals are divided into two categories: reactive nonmetals and noble gases.
Halogen elements are in group 17: fluorine (F), chlorine (Cl), bromine (Br) and iodine (I). They are very reactive and easily form many compounds.
Noble gases are in group 18: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe) and radon (Rn). They have very low chemical reactivity.
Answer:
the chemical composition of a substance.
Explanation:
