PHY S 100 Lesson 17
According to the quantum model of the atom, the valence electrons of an atom are buried deep inside the atom.
False
Selenium (atomic number 34) has 3 valence electrons.
False
Within a given period, metals have higher ionization energies than non-metals do.
False
Which of these is a collection of elements that shares a set of similar chemical and physical properties?
Family
When you compare the ionization energies of K, Ca, and Ar, which of the following is the least likely to give away an electron?
Ar
Use the periodic table to list the atoms Br, As, and Ca (bromine, arsenic, and calcium) in order of increasing diameter (largest last).
Br, As, Ca
Why do elements in the same column of the periodic table react in similar ways?
Each element in the column has the same number of valence electrons.
On which side of the periodic table are non-metals found?
Right
Carbon (C), silicon (Si), and lead (Pb) belong to the same family.
True
The ionization energy is the amount of energy needed to do what to an atom?
remove an electron
