The nonmetals include which of the following groups? Use the periodic table to answer the question. Check all that apply. halogens

alkali metals

lanthanides

noble gases

alkaline earth metals

Working with si (metric) units for each of the following commonly used measurements, indicate its symbol. liter gram milliliter kilogram meter centigram milligram centimeter kilometer second millimeter milliseconds

If two atoms are bonded to a central atom with no lone pairs,how will they be arranged

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation: