AP chem pt4

Give the number of core electrons for Cd

46

Give the number of valence electrons for Cl

7

Choose the orbital diagram that represents the ground state of N

A

Give the ground state electron configuration for F-

A

How many unpaired electrons are there in the ground state of Cl

1

Place the following in order of increasing first ionization energy

B) As < N < F

Place the following in order of increasing metallic character

B) Na < K < Rb < Cs

Of the following, which atom has the smallest atomic radius

B) Te

An element from Group 2, X, reacts with chlorine gas. what is the formula of the most likely product formed

B) XCl2

Give the set of four quantum numbers that could represent the last electron added to the Cl atom

E) n=3, l=1, m=0, s = -1/2

Give the set of four quantum numbers that could represent the last electron added (using the Aufbau principle) to the Zn atom.

E) n=3, l=2, m=2, s= -1/2

when an active metal, M, reacts with water, which substance is always one of the products produced

H2

"When filling degenerate orbitals, electrons fill them singly first with parallel spins." This is known as:

Hund's rule

No two electrons have the same four quantum numbers is known as

Pauli exclusion principle

Which of the following statements is true

A) An orbital that penetrates into the region ocupied by core electrons is less shielded from nuclear charge than an orbital that does not penetrate and therefore has lower energy

which of the following atoms has the largest atomic radius

A) Ca

which of the following have their valence electrons in the same shell

A) Rb, Sb, I

Identify the element that has a ground state electronic configuration of {Kr}....

A) Tc

A Na cation is smaller than an Na atom because

A) The sodium cation has more protons than electrons and the effective nuclear charge on the outer electrons is larger compared to the Na atom

Electrons filling up the orbitals from low to high is known as

Aufbau principle

which atom has the largest first ionization energy in units of kJ/mol

C) Mg

which element has the most negative electron affinity

C) Se

The element that corresponds to the electron configuration 1s^22s^22p^63s^23p^64s^23d^4

C) chromium

The element that corresponds to the electron configuration 1s^22s^22p^63s^23p^64s^23d^1

C) scandium

of the following, which element has the highest first ionization energy

C) silicon

Give the ground state electron configuration for Br ion

D

Give the ground state electron configuration for Pb

D