Question 16 (1 point) (02.08 MC)
Which of the following describes how further studies supported the work done by Ernest Rutherford? (1 point)

Max Planck formulated the Planck's constant.

Albert Einstein formulated the energy equation.

James Chadwick discovered neutral particles in the nucleus.

Joseph Proust stated that each compound has a fixed ratio of elements.

How does litmus paper indicate an acid?

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

Which factor is likely to impact the possible number of compounds ?