Chem 1-25

1.

1 point

Which one of the following is correct?

v + λ =c

λ = cv

vλ = c

v = cλ

v/λ =c

2.

1 point

which group in the periodic table contains elements with the valence electron configuration ns2np1

3A

4A

2A

1A

8A

3.

1 point

Ham radio operators often broadcast on the 6-meter band. The frequency of this electromagnetic radiation is _____ MHz.

500

50

2.0

20

200

4.

1 point

What color of visible light has the highest energy?

Violet

Blue

Green

Yellow

Red

5.

1 point

All of the _____ have a valence shell electron configuration of ns1

halogens

alkaline earth metals

chalcogens

noble gases

alkali metals

6.

1 point

The largest principal quantum number in the ground state electron configuration of barium is

4

1

5

6

2

7.

1 point

There are ______ orbitals in the second shell

2

9

4

8

1

8.

1 point

Of the following transitions in the Bohr Hydrogen atom, the ______ transition results in the emission of the highest energy photon.

n=6 -> n=1

n=1 -> n=4

n=6 -> n=3

n=3 -> n=6

n=1 ->n=6

9.

1 point

In a ground state manganese atoms,the ___ subshell is partially full

3s

3d

4s

4d

4p

10.

1 point

There are ____ orbitals in the third shell

9

4

25

16

1

11.

1 point

The azimuthal quantum number of the outermost electrons in a nitrogen atom in the ground state is

-1

2

1

0

3

12.

1 point

Of the following______ radiation has the shortest wavelength.

microwave

radio

X-Ray

ultraviolet

Infrared

13.

1 point

The _____ quantum number defines the shape of an orbital

principal

spin

magnetics

azimuthal

psi

14.

1 point

The energy of a photon of light is _____ proportional to its frequency and ______ proportional to its wavelength.

directly, directly

indirectly, not

inversely, directly

directly, inversely

inversely, inversely

15.

1 point

What is the frequency of light (s-1) that has a wavelength of 3.12 x 10^-13 cm

4.10 x 10^-7

1.04 x 10^-13

9.62 x 10^12

2.44 x 10^16

3.69

16.

1 point

There are ____ unpaired electrons in a ground state phosphorus atom

0

3

2

1

4

17.

1 point

The 4d subshell in the ground state of atomic xenon contains ___ electrons

36

6

2

10

8

18.

1 point

a spectrum containing only specific wavelengths is called a ____ spectrum

line

continous

visible

rydberg

invariant

19.

1 point

Of the following ______ radiation has the longest wavelength and _____ radiation has the greatest energy.

gamma ultraviolet visible

gamma, visible

visible, gamma

ultraviolet, gamma

visible, ultraviolet

gamma, gamma

20.

1 point

The wavelength of a photon that has an energy of 5.25 x 10^-19 J is _____ m

2.64 x 10^6

4.21 x 10^-24

3.79 x 10^-7

2.38 x 10^23

3.79 x 10^7

21.

1 point

The energy of a photon that has a frequency of 8.21 x 10^15 s-1 is _____ J.

1.99 x 10^-25

1.24 x 10^49

8.08 x 10^-50

5.44 x 10^-18

1.26 x 10^-19

22.

1 point

The principal quantum number for the outermost electrons in a Br atom in the ground state is

1

3

5

4

2

23.

1 point

How many p-orbitals are occupied in Ne atom

1

5

6

2

3

24.

1 point

The wavelength of light that has a frequency of 1.20 x 10^13 s^-1 is ______ m.

.0400

2.5

12.0

25.0

2.50 x 10^-5

25.

1 point

The elements in the ____ period of the periodic table have a core-electron configuration that is the same as the electron configuration of neon.

second

first

fifth

fourth

third