Chem, ch.8

Elements with the highest first ionization energies are found in the ____ region of the periodic table.

Upper Right

Which of the following elements has the largest atomic size?

Ba

How many valence electrons are there in an atom with the electron configuration [noble gas]ns2(n -1)d10np3?

5

Which of the following elements has the largest first ionization energy?

Cl

Which of the following elements has the largest second ionization energy (IE2)?

Li

Which of the following sublevels is filled last? 3d, 4s, 4p, 4d, 55

4d

Select the element with the greatest metallic character.

Cs

Select the correct electron configuration for Te (Z = 52).

[Kr] 5s25d105p4

Which of the following fourth-period elements has the smallest atomic radius?

Cu

Select the diamagnetic ion.

Sc3+

Metallic behavior is generally associated with

elements with very negative electron affinities

Elements with___first ionization energies and ___ electron affinities generally form anions

high; very negative

The effective nuclear charge for an atom is less than the actual nuclear charge due to

Shielding

In a single atom, what is the maximum number of electrons which can have quantum number n = 4?

32

Select the element with the least metallic character.

Ge

The electronic structure 152222p63s23p6423d8 refers to the ground state of

Ni

Select the correct electron configuration for Cu (Z = 29).

[Ar]4s13d10

Energy states of atoms containing more than one electron arise from nucleus-electron and electron-electron interactions. Which of the following statements correctly describes these effects?

Larger nuclear charge lowers energy, more electrons in an orbital increases energy.

Which of the following elements is paramagnetic?

V

Which one of the following statements about orbital energies is incorrect?

The energy of a given orbital increases as the nuclear charge Z increases.

Which of the following elements has the smallest first ionization energy?

Rb

Select the correct electron configuration for sulfur (Z = 16).

1522522p63523p4

In the electron configuration [Ar]423d104p4, which are valence electrons?

both the 452 and the 4p4 electrons

Which of the following elements has the smallest atomic size?

Ar

Which of the following atoms will be diamagnetic?

Cd

The most basic oxides are formed from elements found in the___region of the periodic table.

Lower left

How many valence electrons are there in an atom with the electron configuration [noble gas]ns2(n - 1)d8?

10

Select the element with the most negative electron affinity (i.e., accepts an electron most readily).

F

Elements with__first ionization energies and___ electron affinities generally form cations.

low; positive or slightly negative

"Electrons added to atomic orbitals of the same energy will remain unpaired with parallel spins until the subshell is more than half-filled" is a statement of

Hund's rule.

Which of the following sets of elements have the [noble gas]ns2p2 valence electron configuration?

C, si, Ge, Sn, Pb

Which one of the following equations correctly represents the process involved in the electron affinity of X?

X (g) +e-→ X-(g)

Select the most acidic compound from the following.

SO2

Select the most basic compound from the following.

Cs2O

Which of the following elements will form a cation with a +2 charge?

Sr

In the electron configuration [Ar]4s23d104p4, which are valence electrons?

both the 4s2 and the 4p4 elections

"Each electron in an atom must have its own unique set of quantum numbers" is a statement of

the Pauli exclusion principle.

Which of the following elements has the smallest atomic radius?

Ne

The most acidic oxides are formed from elements found in the ___region of the periodic table.

upper right