Periodic Table
What is NONMETALS
An alkali metal in the 3rd energy level.
What is sodium?
This element has the following electron configuration:
1s22s22p63s1
What is Sodium?
Aufbau Principal States
What is Electrons occupy orbitals of lowest energy first.
Who is known as the father of the periodic table?
What is Mendeleev?
Elements located on the "stairstep"
What is METALLOIDS?
This group has 8 electrons in the p block.
What is noble gas?
This element has the following electron configuration:
1s22s22p63s23p4
What is Sulfur?
What happens to the atomic radius as you go across a period and why?
The radius decreases because there are more charges in the nucleus to attract electrons.
Pauli Exclusion Principal
What is electrons are paired based on their spin directions, clockwise and counterclockwise?
The transition metals are located here (group #).
What is Groups 3-12?
Give the charge for groups 1, 2, 13, 14, 15, 16, 17, 18
1+ 2+ 3+ 4+/- 3- 2- 1- 0
This element has the following electron configuration:
1s22s22p63s23p64s23d104p65s24d105p5
What is Iodine?
What happens to the ionization energy as you go down a group?
It decreases because because the atom gets bigger as you go down a group, so the attraction between the nucleus and electron is not as strong.
Hunds rule states
Single electrons with the same spin must occupy each equal-energy orbital before additional electrons with opposite spins can occupy the same orbitals.
This group has 7 valence electrons
What are halogens?
Give the valence electrons for groups 1, 2, 13, 14, 15, 16, 17, 18
1, 2, 3, 4, 5, 6, 7, 8
The following element has an electron configuration of:
[Xe] 6s24f145d7
What is Iridium?
This happens to the electronegativity as you go across a period?
What is electronegativity increases?
The element with the highest atomic radius in group 1
Francium
What is the name of Group 2
What is Alkaline Earth metals?
What group will create ions with a +2 charge?
This element has an electron configuration of:
[Rn] 7s2
What is Radium?
Describe the difference between electronegativity and ionization energy.
Ionization energy is the amount of energy it takes to lose an electron while electronegativity is the ability to attract an electron to an atom.
The element that has the highest ionization energy.
(excluding: Noble Gases)
What is Florine?