groups
What name is given to group 17
halogen family
How many valence electrons does hydrogen have?
1
What category do the actinide series belong to?
Metals
When is your Unit 2 test?
THIS THURSDAY :-)
Which element in each pair has atoms with a larger radius?
A. strontium or magnesium
B. gallium or bromine
Sr & Ga
What group number makes up the alkali metals?
1
How many valence electrons does Oxygen have?
6
Where are the metalloids located on the periodic table?
In between the metals and nonmetals.
Who is the creator of the periodic table?
Dmitri Mendeleev
Which element in each pair has a greater ionization energy?
A. Lithium or Sodium
B. Cesium or Sulfur
Li & S
What name is given to group 2?
Alkaline Earth metals
How many valence electrons do the Noble Gases have?
8
Metal/Nonmetal/Metalloid
Which category above has elements that have three valence electrons up to seven valence electrons?
metalloids
Currently, the modern periodic table is arranged by increasing ________ ________?
Atomic Number
Which element in each pair has a higher electronegativity value?
A. Chlorine or Fluorine
B. Carbon or Nitrogen
F & N
Beryllium is the first element of which group?
State the group name and number.
Alkaline Earth Metals
Group 2 or 2A
Which group has 4 valence electrons?
group 4 or 4A or 14
Which category has elements that exist as a solids, liquids, and gases at room temperature?
nonmetals
Which element did Mendeleev correctly predict without ever seeing in person?
Gallium
Which group number is excluded from the electronegativity trend because they are nonreactive?
Noble Gases 8
Name the group that is composed of unreactive elements.
State the group name and number.
Noble Gases Group 8
Describe the location of the valence electrons with respect to the nucleus.
In the outermost energy level
Classify all the elements in the Carbon family as a metal, metalloid, or a nonmetal.
Carbon = Nonmetal
Silicon and Germanium = Metalloid
Tin and Lead = Metal
Which trend on the periodic table increases from right to left, and top to bottom?
Atomic Radius
Explain why electron affinity values are higher for nonmetals than metals.
Nonmetals have higher electronegativity values because they gain valence electrons whereas metals tend to lose valence electrons