Author Question: Which has the lowest first ionization energy? A) Cs B) Li C) K D) ... (Read 79 times)

sarasara · **on:** Aug 27, 2018

Which has the lowest first ionization energy?

A) Cs
B) Li
C) K
D) Rb

Question 2

The formula BaSO4 represents a compound composed of

A) two atoms of barium, four atoms of sulfur, and four atoms of oxygen.
B) one atom of barium, four atoms of sulfur, and four atoms of oxygen.
C) one atom of barium, one atom of sulfur, and four atoms of oxygen.
D) one atom of boron, four atoms of sulfur, and four atoms of oxygen.
E) one atom of boron, one atom of sulfur, and four atoms of oxygen.