Properties of the Periodic Table
Elements on the periodic table are organized into columns (up and down), called _________.
Groups
How many electrons can fit in each of the orbitals on a bohr model?
2, 8, 8, 8
What do the coefficient, letter, and exponent each represent in electron configuration?
1s2
Coefficient - Energy Level
Letter - Orbital/Shape
Exponent - # of Electrons in that specific orbital.
Atomic radius describes the general ________ of an atom.
size
Valence electrons are the electrons on the ________ energy level/orbital.
outler/last
A cluster of elements (usually organized in groups) that share similar features are called ____.
Families
Where are the valence electrons on a Bohr Model?
outer orbital
The Uncertainty Principle states that it is impossible to know both the exact __________ and ___________ of an electron at any given time.
position and speed
Electronegativity describes the ability for an atom to hold onto its ________.
electrons
An atom can have no more than ____ total valence electrons. (1-___)
8
Which family of elements have period numbers, but not group numbers?
Inner-Transition Metals (Lanthanides and Actinides)
Are Bohr Models the accepted models for the atom? (Is this what scientists accept today?)
No
Can cloud models be used to count the number of electrons in an atom?
No
As atomic radius increases (gets larger), what happens to electronegativity?
electronegativity decreases
Draw the Lewis Dot Diagram for Calcium
See Board
What group and period is Tungsten in?
Group 6 Period 6
How do electrons behave (move) in the Bohr Model?
Electrons move on the orbital.
What are the names of the orbitals in the cloud model?
s, p, d, and f.
Rb, Sr, I, Xe
The elements above are in order of ________ atomic radius and ______ electronegativity.
Use increasing and decreasing to fill in the blanks above.
decreasing atomic radius
increasing electronegativity
Lewis Dot Diagrams show how many valence electrons an atom has and how many _________ it can make to become stable.
bonds
This element is a halogen in period 5
Xenon
What was the original name for the Bohr Model?
Planetary Model
Where are the valence electrons in electron configuration?
Ex: 1s22s22p63s23p64s23d104p3
Explain why Fluorine is more electronegative than Francium. (2 reasons)
Fewer orbitals, more valence electrons.
What is the Lewis Dot Diagram for Helium?