Atomic Radius
What does "atomic radius" mean?
Size of the atom
Half the distance between two nuclei
Distance from nucleus to outermost electrons
What does "ionization energy" refer to?
The energy required to remove an electron from an atom
An unknown sample has a shiny luster, is very malleable, and is highly conductive of electricity, it is most likely a.... (metal, nonmetal, or metalloid)
Metal
What are the vertical columns of the periodic table called?
The family/ group
Who first developed the periodic table of the elements?
Dmitri Medeleev
As you go down a column on the table, what happens to the radius?
Increases
As you go across a row from left to right, what tends to happen to ionization energy?
It increases
Nonmetals tend to be found in which region of the periodic table?
Top right
What are the horizontal rows of the table called?
The period
Why do elements that are in the same "family" have similar properties
Same # of valence electrons
As you move across a row on the table what happens to the atomic radius
Decreases
As you move down a column from top to bottom, what tends to happen to ionization energy?
It decreases
What tends to happen when a nonmetal ion comes close to a metal ion?
They attract/ form a bond
What do elements in the same row have in common?
What charge will a Phosphorus (P) ion have?
-3
Which atom has a larger radius- Iron (Fe) or Gallium (Ga)?
Iron (Fe)
Which atom has a larger first ionization energy, Aluminum (Al) or Sulfur (S)?
Sulfur
Which of these elements is not a metal: Potassium (K), Astatine (At), Lithium (Li), Sodium (Na)
Astatine (At)
What do elements in the same column have in common?
Same number of valence electrons
Which state of matter are most nonmetals at room temperature?
Gas
Rank these four elements in order from smallest to largest atomic radius: (P, Cd, Zn, S)
S, P, Zn, Cd
Rank these four elements in order of increasing first ionization energy: S, Cu, Ag, Cl
Ag, Cu, S, Cl
Which of these elements is not a metalloid: Geranium (Ge), Silicon (Si), Aluminum (Al), Arsenic (As)
Aluminum (Al)
Bottom left
Which metal will be more reactive- Calcium (Ca) or Lead (Pb)?
Calcium