Chemistry: Periodic Table (Blanton)
How many moles are there in 2 grams of Oxygen?
0.13 mol (equation: mole=mass/molar mass)
How many valence electrons does Potassium have?
1
How many grams are in 7 moles of Sodium?
161 g (equation: mole x molar mass)
Electron configuration for O?
1s2 2s2 2p4
Electron configuration for Al?
1s2 2s2 2p6 3s2 3p1
How many valence electrons does Magnesium have?
2
How many valence electrons does oxygen have?
6
How many valence electrons does Iodine have?
7
Where are metalloids located on the periodic table?
Along the staircase
Define electronegativity
Atom's ability to attract and hold electrons.
Identify Mendeleev
Father of periodic table; placed chemical names on cards and arranged according to their properties and atomic weight
Where are the actinides located on the periodic table?
Found in between groups 3 & 4
Where are the lanthanides located on the periodic table?
Found in between groups 3 & 4
Where are the halogens located on the periodic table?
Group 17
Where are the noble gases located on the periodic table?
Group 18
Who came up with the theory of electronegativity?
Linus Pauling
noble gas configuration for Zn?
[Ar] 3d10 4s2
noble gas configuration for Zr?
[Kr] 4d2 5s2
Identify Moseley
arranged elements according to atomic number; mondified "Periodic Law"
What two properties are the modern periodic table based on?
atomic number and electron configuration
Alkaline metals typically occur as
compounds
As atomic Radii increases what happens to electronegativity and ionization energy?
decreases
What is the Aufbau Principle?
electrons occupy the orbitals of lowest energy first
What is Hund's rule?
every orbital in a subshell is singly occupied with one electron before any one orbital is doubly occupied, and all electrons in singly occupied orbitals have the same spin.
Where are alkali metals located on the PT?
group 1
When an electron is removed the ______ ______ increases
ionization energy
Where are metals located on the periodic table?
left of staircase
Define Multi-Valent electrons
more than one valence electron
Define anion
negative ion
Define cation
positive ion
Where are nonmetals located on the periodic table?
right of staircase
Define electron affinity
the energy change that occurs when an electron is acquired by a neutral atom
Define ionization energy
the energy required to remove an electron from an atom
Atomic Radii is determined by?
the strength of attraction between the nucleus and the outermost electrons
