Which is the correct electron dot diagram for the element lead (pb)?

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

As air becomes more dense, (select all that apply) o. air weighs less o. gas molecules are closer together o. air is colder o. air weighs more o. gas molecules are further apart o. air is hotter

Reduction is a reaction which results in a in electrons and a in positive charge of the atom or ion 1) a- loss 1) b- gain 2) a-increase 2) b-decrease