In the space below, write the Noble Gas (abbreviated) electron configurations of the following elements:
6)
cobalt
7)
silver
8)
tellurium
9)
radium
10)
lawrencium

When light strikes a plane mirror, images form in locations where light does not actually reach. it only appears to the observer as though the light were coming from this position. what type of image is formed?

Plz choose one of the compounds from the table and explain how you know the numbers of atoms in your formula. is it possible for two different compounds to be made from the exact same two elements? why or why not? with a limited number of elements (less than 120 are known), does this mean we also have a small number of compounds or do we have a large number of compounds in this world?

Find the mass, in grams, of 5.00*10^23 molecules of f2