El átomo de un elementos "E" posee 17 electrones en orbitales cuya energía relativa es 6. ¿Cuál es su ubicación en la tabla periódica?

How many atoms are in 1.4 mil of phosphorus trifluoride (pf3)

Which position represents spring in the southern hemisphere? a) b) c) d)

In an investigation that uses the scientific method, which step immediately follows making a hypothesis? o summarizing the results o asking a question o making observations designing an experiment mark this and retum save and exit next submit