Electron Configuraiton
What is the electron configuration for oxygen (draw it out as well)?
1s2 2s2 2p6 3s1
Rank the following elements by increasing atomic radius: Carbon, aluminum, oxygen, and potassium
O, C, Al, K
What is the lewis dot structure for PBr5?
5 Br with 3 lone pairs around one P with no lone pair
What is the molecular geometry of BeF2?
Linear
What is the bond angle of a linear molecule?
180
What is the electron configuration for sodium (draw it out as well)?
1s2 2s2 2p6 3s1
Rank the following elements by increasing electronegativity: sulfur, oxygen, neon, and aluminum
Ne, Al, S, O
What is the lewis structure for H2CO?
C double bond O with H, two lone pairs on the O
What is the molecular geometry of BCl3?
trigonal planar
What is the bond angle of a trigonal planar molecule?
120
What element is denoted by 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s1?
Rubidium
Which has the largest ionic radius: S(2-),Cl(-), or Cl?
S(2-)
What is the lewis structure for AsF3?
One lone pair on As and 3 lone pairs on each F.
What is the molecular geometry of CCl4?
tetrahedral
What is the bond angle of a tetrahedral molecule?
109.5
What is the abbreviated electron configuration for silver?
[Kr] 5s2 4d9
Rank the following by ionization energy: helium, phosphorus, and silicon.
What is the lewis structure for ClNO?
2 lone pairs on the O, 1 lone pair on the N, 3 lone pairs on the Cl, double bond between N and O
What is the molecular geometry of PBr5?
Trigonal bipyramidal
What is the bond angle of a bent molecule?
<120
What element is denoted by 1s2 2s2 2p6 3s2 3p4?
Sulfur
What is the smallest atom in period 5?
Xe
What is the lewis structure for H3O+?
Three H attached to a O with one lone pair (and a positive charge)
What is the molecular geometry of SI6?
octahedral
What is the bond angle of a seesaw molecule?
<90, <120, <180