Electron Configuration
This element is represented by the electron configuration 1s2 2s2 2p2.
What is Carbon?
Number of valence electron(s) in Sodium.
What is 1?
The Lewis Structure of Aluminum.
What is . Al :?
The amount of grams of water would require 2200 joules of heat to raise its temperature from 34°C to 100°C? The specific heat of water is 4.18 J/g°C.
What is 7.974g?
The element with the largest atomic radius of the following:
Na, K, Mg, Ca.
What is K?
The electron configuration for Kr.
What is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6?
Number of valence electron(s) in Fluorine.
What is 7?
The Lewis Structure of S^2-.
What is [::S::]^2-?
The final temperature of this metal if 450 J of heat energy are added given a 55 kg block of metal has an original temperature of 15.0°C and 0.45 J/g°C.
What is 15.02°C?
The element that has the least attraction for electrons of the following:
F, Cl, Br, I
What is I?
The electron configuration for Ga.
What is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p1?
Number of valence electrons in Li+.
What is 2?
The Lewis Structure of Calcium Fluoride.
[::F::]^-1 [Ca]^2+ [::F::]^-1
The standard enthalpy change for
Fe2O3 (s) + 3H2 (g) ⟶ 2Fe(s) + 3H2O(l)
-824.2 0 0 -285.83 (kJ/mol)
What is -33.29 kJ?
The amount of energy required to remove the outermost electron from a gaseous atom.
What is ionization energy?
The electron configuration for P.
What is [Ne] 3s2 3p3?
The formal charge of Carbon in CH4.
What is 0?
The Lewis Structure and Geometry of NH3.
What is H-N:--HH and Trigonal Pyramid?
The standard enthalpy change for
2LiOH(s) + CO2 (g) ⟶ Li2CO3 (s) + H2O(g)
-487.5 -393.5 -1216 -241.82 (kJ/mol)
What is -89 kJ/mol?
The element with the lowest first Ionization energy of the following:
Be, Mg, Ca, Ba
What is Ba?
The electron configuration of Copper.
What is 1s2 2s2 2p6 3s2 3p6 4s1 3d10?
The formal charge of Nitrogen in HCNH+.
What is +1?
The Lewis Structure and Geometry of C2H4.
What is HH-C=C-HH and Trigonal Planer?
The enthalpy for this reaction:
2C(s) + H2(g) ---> C2H2(g)ΔH° = ??? kJ
Given the following thermochemical equations:
C2H2(g) + 5⁄2O2(g) -> 2CO2(g) + H2O(ℓ)ΔH° = -1299.5 kJ
C(s) + O2(g) -> CO2(g)ΔH° = -393.5 kJ
H2(g) + 1⁄2O2(g) -> H2O(ℓ)ΔH° = -285.8 kJ
What is 226.7 kJ?
List the elements in order of increasing ionization energy.
Cl, I, F, Br
I -> Br -> Cl -> F