Periodic Table I
Group 2 elements are known as ....
Alkaline earth metals
The most reactive family of nonmetals
halogens (group 17) or 7A
Between carbon and lead, the element that has a smaller atomic radius is...
carbon
Between arsenic, antimony and germanium, the one that has the least Ionization energy
antimony
How many periods on the periodic table?
7
Which elements are located on the stairs?
Metalloids
Phosphorus belongs to group number .........
15 or 5A
The group/family that has 2 valence electrons is
Alkaline Earth Metals (group 2)
Between Magnesium and Barium, the one that has a larger atomic radius
barium
Between magnesium, potassium and rubidium, the one that is least reactive
magnesium
malleable means...
Ability to be hammered into sheets
Group 18 ( 8A) is also known as the .....
Noble gases
Groups 3 - 11 are called ...
transition metals
How is the periodic table arranged?
by increasing atomic number
Between Chlorine and Iodine, the one that has a higher Ionization Energy.
chlorine
Energy needed to remove an electron completely from a gaseous atom is ....
Ionization Energy
True or False - Silver has a luster and is a conductor of heat
True
Name an element chemically similar to bromine
Any element in group 17 ( 7A) (Same group = similar properties)
Strontium belongs to this family in the periodic table
Alkaline earth metals
The period has the greatest level of shielding
Period 7
Explain why the radius increases as you go down a group
More energy levels
Electronegativity is defined as....
attraction for electrons in a chemical bond
The electrons in the outermost energy level are called...
valence electrons
The Symbol for Sodium is
Na
The 2 liquids on the periodic table?
Mercury and bromine
Atomic numbers 57-71 are called the
Lanthanide Series
The noble gases have zero electronegativity because...
they have a completely full valence shell
What type of ion does aluminum form? (give sign and number)
+3
True or False
The noble gases are highly reactive
False
True/False - Hydrogen is an alkali metal
FALSE