Periodic Table I
Group 2 elements are known as ....
Alkaline earth metals
The most reactive family of nonmetals
halogens (group 17)
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
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 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 (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 different colors of light that we see is due to the emission of energy from electrons that ________ from one energy level to another
Fall
The 2 liquids on the periodic table?
Mercury and bromine
The term used to describe the level of attraction electrons have to the protons in the center of an atom?
Nuclear Force / Coulombic Attraction
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
Which group has 3 phases of matter?
Group 17 (Halogens)
True/False - Hydrogen is an alkali metal
FALSE