Emission Spectrum
What other trend follows the same trend as metallic character?
Atomic radii
Is a n=3 to n=5 transition an example of emission or absorption
Absorption
Which subatomic particle is represented by the atomic number?
Protons
What is the electron configuration of He?
1s2
What is the Lewis Structure for CO2?
:O=C=O:
Where are you most likely to find an anion on the periodic table?
Right
Will red light have a higher or lower frequency than orange light?
Lower
Which subatomic particles are in the nucleus?
Protons and Neutrons
What group of elements are used for condensed configuration?
Noble gases
What is the formal charge formula?
FC=ve-(lone pair+1/2bound electrons)
What is the most electronegative element?
F
Does UV light have a higher or lower frequency than red light?
Higher
Which subatomic particle does NOT matter in determining isotopes?
Electrons
Give an example of a diamagnetic element.
(Be, noble gases, ANY element with all paired e’s.)
What is the Lewis Structure for PCl5?
5 Cl single bond to P
Name three groups on the periodic table that are made up of only metals.
Alkali, Alkaline Earth, and Transition Metals
What is the photoelectric effect?
Electrons are emitted from atoms when they absorb energy from light
How many electrons are in a 4d orbital?
2
In ionization, would you remove from the 4s or 3d subshell first?
4s
What is the Lewis Structure & Formal Charge for NO3-?
O-N=O
O
O(x2)=-1
O=0
N=+1
Why does N have a higher ionization energy than O?
N’s 2p3 subshell is half-filled, hence like a d-block element, it is more stable than O’s 2p4 subshell
The red light from a helium-neon laser has a wavelength of 633 nm. What is the energy of one photon?
E = hc/λ
E = 6.626 x 10-34 J·s x 3 x 108 m/sec/ (633 nm x 10-9 m/1 nm)
E = 1.988 x 10-25 J·m/6.33 x 10-7 m E = 3.14 x -19 J
3.14 x -19 J
The circles around the nucleus in a Bohr model represent what?
Shells
What is the electron configuration of Cr2+?
[Ar] 3d4
What is the lewis structure for xenon tetraflouride?
F
F-:Xe:-F
F