Problems with natural populations do not occur in just marine environments. Find an article discussing a problem with an animal population in your area and briefly describe the issue. If you live near a marine environment, what negative impact is this animal having on the environment?

1)each group 16 element has how many valence electrons? ( )4 ( )6 ( )8 ( )16 2)how many dots appear in the dot structure for calcium ion, ca2+? ( )zero ( )one ( )two ( )eight 3) which of the following atoms forms a cation to obtain an octet of outer shell electrons? ( )magnesium ( )oxygen ( )fluorine ( )helium 4) an al3+ ion contains 13 protons and 10 electrons. ( )true ( )false 5) valence and non-valence electrons are represented in lewis dot structures. ( )true ( )false

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

The number at the end of an isotope’s name is the number.