Atomic Radius & Ionization Energy
Which of the groups exhibit the lowest second ionization energy?
Alkali Earth Metals
Which element has an EN of 1?
Li
What is formal charge?
Measure of the difference between the number of valence electrons belonging to an atom, and the numbers of valence assigned in a Lewis dot structure
What atom is the LEAST magnetic in the Periodic Table?
F
What is the EN difference for Ionic?
EN > 1.5
Which element has the highest atomic radius, (O, Mg, Ca)?
Ca
What is the EN difference between C and F, and is it high or low?
1.5 and it's a high EN difference.
What is the ideal formal charge of every atom?
0
What atom is less magnetic?
(Cl, S, Se, Ga)
Cl
What is the EN difference for Covalent?
EN < 1.5
Which atom has the highest ionization energy?
Cl, I, Br, F
F
What is the the correct order of increasing Electronegativity?
A) C < N < O
B) O < N < C
C) C < O < N
D) N < C < O
A) C < N < O
True or False:
The compound with the smallest formal charge values is the least stable.
False
How do we know when it's more metallic or less metallic?
By looking at the lower left side of the Periodic table, the metallic character is more likely than in the upper right side where it's either semi or nonmetallic.
Which of the following bonds has more of a covalent character?
C - F
C - N
Li - F
H - F
C - N
What way does the Atomic Radius increase and decrease in the Periodic Table?
It decreases from the top right and it increases across the top bottom section of the Periodic table.
Which two atoms have the lowest EN difference?
(C-H, Li-B, Be-N, O-F)
Be - N
What is the formal charge of H in NH3?
0
Which of the following is NOT a property of metals?
It forms anions.
True or False: Li2O is an ionic bond.
True
Rank the following atoms in order of increasing Radius:
Li, Au, C, Cs
C < Li < Au < Cs
What is Electronegativity?
It is a semi-quantitative measurement of interest of an electron between two atoms.
What is the formal charge of N in NO3-
Which one would be more likely to show most metallic character?
A. Ni
B. Ca
C. B
D. Cs
D. Cs
Which of the following pairs of elements would you expect to form an ionic bond?
A) S and S
B) N and P
C) Rb and Cl
D) C and F
C) Rb and Cl