Chem Exam 9,10,11

Atomic Radius Increases

Top to Bottom

Attomic Radius Decreases

From Left to Right

Order of Orbitals

SPDF

Effective Nuclear Charge 

Increases from left to right 

According to Coulomb’s law, if the separation between two particles of the same charge is doubled, what happens to the potential energy of the two particles?

it is one-half as high as it was before the separation

Which electron in sulfur is most shielded from nuclear charge?

3p orbital 

Electron Configuration for Se

1s²2s² 2p^63s² 3p^64s²3d^104p^4

Which set of four quantum numbers corresponds to an electron in a 4‍‍p orbital?

n=4,l=1,m1=0,ms=1/2

C, Si, Be, F which has smallest atomic radius

F

Which statement is true about electron shielding of nuclear charge?

Core electrons efficiently shield outermost electrons from nuclear charge

The ionization energies of an unknown third-period element are listed here. Identify the element. IE1=786; IE2= 1580; IE3=3230; IE4=4360, IE5=16,100 - Mg, Al, Si, P

Si

Which statement is true about trends in metallic character?

decreases right across a row and increases as we move down column

For which element is the gaining of an electron most exothermic? Li, N, F, B

F

Electronegativity 

decreases down the column and increases left to right 

What is electronegativity

Ability of an atom to attract e^- to itself in chem bond forming a non-polar bond

When does the magnitude of the lattice decrease 

moves down the column

What are the trends with lattice and ionic radius

they are inverse lattice decreased down column, but ionic radius increases down the column

What is wrong with the statement? Atoms form bonds in order to satisfy the octet rule 

Atoms form bonds to low potential energy and the octet rule help us predict the cases bonds forms