How many dozens of silver atoms are in the piece of jewelry?.

Forests and meadows are often cut down to make way for farms or large number of new homes. what are some of the elements of ecosystems that are lost when plants in these areas are removed?

Which of the following elements would you expect to have the lowest ionization energy value? fluorine, lithium, neon, nitrogen

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change?