6) If a compound is made from two non-metal elements, which element goes first in the name? It's alphabetical
The element with the highest atomic number
The element to the right of the Periodic table
The element with the shortest name
The element to the left of the Periodic table

What pressure will be exerted by 0.675 moles of a gas at 25*c if it is in a 0.750-l container?

Drive down any three characteristic of modern periodic table

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