Define
Period - horizontal
Group- vertical
State the elements in group 1 by increasing atomic radius.
What is group 17 known as?
Halogens
What is the charge of group 2?
2+
What is the difference between core and valence electrons?
Core electrons: Inner electrons carrying the least amount of energy
Valence electrons: Outermost electrons
Define atomic radius.
Atomic radius is the measure of the size of its atom
State the following by increasing atomic radius:
K, Ga, Kr, Br, Ca
Kr < Br < Ga < Ca < K
What is group 3-12 known as?
Transition metals
What is the charge of group 14?
4+/4-
Where are metals located on the periodic table?
Metals are located to the left of the dividing line.
Electronegativity is the chemical property of an atom that attracts electrons toward itself.
List the following elements in decreasing electronegativity:
Al, Cl, P, Mg, Si
Cl > P > Si > Al > Mg
What is group 1 also known as?
Alkali metals
What is the charge of group 16?
2-
Where are nonmetals located on the periodic table?
Metals are located to the right of the dividing line.
Define ionization energy.
Ionization energy is the amount of energy required to remove an electron from an isolated atom or molecule.
List the following elements by increasing ionization energy:
Mg, Ba, Be, Sr, Ca
Ba < Sr < Ca < Mg < Be
What are the elements in group 2 known as?
Alkaline earth metals
What is the charge of the transition metals?
Various charges
What elements separate the metals from the nonmetals?
Metalloids
Define electron affinity.
Electron affinity is the amount of energy liberated when a molecule or neutral atom acquires an electron from outside.
What are the two exceptions to the rule of electron affinity?
Carbon & Nitrogen
Fluorine & Chlorine
What are the names of the periods in the F block?
Lanthanides & actinides
What is the charge of magnesium?
2+
What is the difference between atomic and ionic radii? Which one is typically smaller?
Atomic radii is the size of an atom at its natural state. Ionic radii is the size of an atom when it has lost electrons (positive ion of the atom). The ionic radii is typically smaller than the atomic radii.