Electronic Structure of Atoms and Periodic Trends

Question 1

Infrared Radiation has a shorter wavelength than?

Answer 1

Radio Waves

Question 1

The visible light spectrum covers the wavelength range of:

Answer 1

400 —-> 700

Question 2

All electromagnetic radiation travels at the same

Answer 2

Velocity

Question 3

Green light has a wavelength of 510 nm. What is the wavelength in m?

Answer 3

5.1 * 10^-7 m

Question 4

The energy of a visible photon is higher than that of

Answer 4

Infrared Radiation

Question 5

The smallest particle of light is called a

Answer 5

Photon

Question 6

Atomic emission spectra are due to electrons because?

Answer 6

In an atom dropping from one energy level to a lower one

Question 7

When ultraviolet energy is absorbed by an atom, an electron __

Answer 7

moves from a lower to a higher energy level

Question 8

The principle quantum numbers have the designation

Answer 8

1,2,3

Question 9

An s orbital can hold __ electrons

Answer 9

2

Question 10

A p orbital can hold up to __ electrons

Answer 10

6

Question 11

A d orbital can hold up to __ electrons

Answer 11

10

Question 12

The 2s orbital

Answer 12

is spherical and larger than 1s orbital

Question 13

The maximum numbers of electrons that may occupy the third energy level is

Answer 13

18

Question 14

According to the Pauli exclusion principle, any orbital can hold at most ___ electrons.

Answer 14

2

Question 15

The number of electrons in an atom of uranium is

Answer 15

92

Question 16

The electron configuration of an atom shows

Answer 16

The number of electrons in each energy level

Question 17

electron configuration of an atom shows ___

Answer 17

the number of electrons in each energy level

Question 18

What electron sublevel starts to fill after completion of the 5s sublevel?

Answer 18

4d

Question 19

What element has the electron configuration 1s^2 2s^2 2p^6 3s^2 3p^5?

Answer 19

CI

Question 20

Iron is a __ block element

Answer 20

D

Question 21

The abbreviated electron configuration for the iron atom is __.

Answer 21

(Ar) 4s^2 3d^6

Question 22

The atomic radius of potassium is smaller than the atomic radius of

Answer 22

Sodium

Question 23

The atomic radius of bromine is larger than the atomic radius of

Answer 23

Chlorine

Question 24

Valence electrons are located

Answer 24

in the outermost energy level of an atom

Question 25

In an electron dot structure of an element, the dots are used to represent __

Answer 25

the valence electrons

Question 26

The ionization of ___ is lower than the ionization energy of ___

Answer 26

chlorine ; flourine

Question 27

Sulfur is more metallic than chlorine

Answer 27

T

Question 28

__ orbitals have 7 orbitals in their sublevel

Answer 28

F

Question 29

___ orbitals are spherical in shape

Answer 29

S

Question 30

__ orbitals are spherical in shape

Answer 30

P

Question 31

__ orbitals usually have 4 lobes

Answer 31

D

Question 32

Electrons in an atom may only have certain energy, because of this, the energy of the electrons in an atoms is said to be ___.

Answer 32

Quantized

Question 33

A p orbital has ___ lobes.

Answer 33

2

Question 34

Is an s sublevel spherical??

Answer 34

T

Question 34

(T or F) Fluorine has an higher ionization energy than sodium

Answer 34

T

Question 35

An s sublevel has 3 orbitals

Answer 35

False, it only has 1

Question 36

A p sublevel has 5 orbitals

Answer 36

False, it has 3

Question 37

Does red light have lower energy than blue light?

Answer 37

T

Question 38

The shortest wavelength of visible light is violet light

Answer 38

T