Periodic Table
Who created the first periodic table?
Dmitri Mendeleev
What groups holds the alkaline earth metals?
group 2 OR 2A
Where are the transition metals?
d block
What is the trend for electronegativity as you go left to right across the periodic table?
electronegativity increases
Which particle is bigger? Li or Li+
Li
What property was the first periodic table arranged by?
atomic mass
What group holds the alkali metals?
group 1 OR 1A
What is the trend for atomic radius from left to right across a periodic table?
atomic radii get smaller
What is the trend for electronegativity as you go down a group the periodic table?
electronegativity decreases
Which particle is bigger Cl or Cl-
Cl-
What is the modern periodic table arranged by?
atomic number
What group holds the noble gases?
group 8A or 18
What is the trend for atomic radii down a group in the periodic table?
atomic radii get bigger
List the symbols for Li, C, and Be in order of increasing atomic radii.
Be, C, Li
Which particle is bigger? Ga or Ga+3
Ga
What four pieces of information can you find in each square of the periodic table?
atomic number, element symbol, element name, average atomic mass
Which elements are metalloids?
B, Si, Ge, As, Sb, Te
What is the trend for ionization energy left to right across the periodic table?
ionization energy increases
Which one of these is not a transition metal? a. Scandium b. Thallium c. Copper d. Hafnium
B. Thallium
Which particle is bigger? O or O-2
O-2
What group includes the halogens?
group 7A or 17
Where are the inner transition metals?
f block
What is the trend for ionization energy down a group in the periodic table?
ionization energy decreases
What electron configuration to all halogens end with?
p-5
Identify 3 properties of metals
good conductor, high luster/sheen, solids at room temp, ductile, malleable