Chem I: Quiz 10

How many valence electrons do the alkali metals possess?

1

Place the following in order of increasing metallic character. Rb, Cs, K, Na

Na < K < Rb < Cs

Choose the ground state electron configuration for Zn^2+.

[Ar]3d^10

Give the ground state electron configuration for Se.

[Ar]4s^2 3d^10 4p^4

Give the ground state electron configuration for Se^2-.

[Ar]4s^22 3d^10 4p^6

Give the ground state electron configuration for I.

[Kr]5s^2 4d^10 5p^5

Give the ground state electron configuration for Pb.

[Xe]6s^2 4f^14 5d^10 6p^2

Choose the orbital diagram that represents the ground state of N.

1s: up down (1 block) 2s: up down (1 block) 2p: up, up, up (3 blocks)

Give the electron configuration for O.

1s^2 2s^2 2p^4

How many valence electrons does an atom of Al possess?

3

How many valence electrons do the halogens possess?

7

Choose the valence orbital diagram that represents the ground state of Zn.

4s: up down (1 block) 3d: up down, up down, up down, up down, up down (5 blocks)

Place the following in order of increasing IE1. N, F, As

As < N < F

Only two electrons, with opposing spins, are allowed in each orbital is known as the

Aufbau principle

Place the following elements in order of increasing atomic radius. P, Ba, Cl

Cl < P < Ba

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

Hund's rule

Identify the element that has a ground state electronic configuration of [Ar]4s^2 3d^10 4p^1.

Ga

Place the following in order of decreasing metallic character. P, As, K

K > As > P

Identify the species that has the smallest radius.

N^+3

Which reaction below represents the first ionization of O?

O(g) ---> O^+(g) + e^-

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

Pauli exclusion principle

Which reaction below represents the second electron affinity of S?

S^-(g) + e^- ---> S^2-(g)

Identify the element that has a ground state electronic configuration of [Kr]5s^2 4d^5.

Tc

Place the following in order of decreasing radius. Te^2-, F^-, O^2-

Te^2- > O^2- > F^-

A cation of +2 indicates that an element has

lost two electrons