What are some examples of Electromagnetic Radiation?

x-rays, sunlight, microwaves, radiant heat

x-rays, microwaves, water, sunlight

x-rays, sound, sunlight, microwaves

Physics Quiz Over Electromagnetic Radiation

2.

What is frequency (wave)

The height of a wave
The distance between two waves
The number of waves per second
The speed of light

Correct Answer

A. The number of waves per second

Explanation

Frequency refers to the number of waves that pass a given point in a specific time period. It is a measurement of how often a wave repeats itself. In the context of this question, frequency specifically refers to the number of waves per second. The height of a wave, the distance between two waves, and the speed of light are not accurate definitions of frequency.

Rate this question:

3.

The excited state is when electrons are

Filling the lowest orbitals
Are bumped to a higher orbital
Are excited
None of the above

Correct Answer

A. Are bumped to a higher orbital

Explanation

When electrons in an atom are in their ground state, they occupy the lowest energy orbitals. However, when these electrons absorb energy, they become excited and move to higher energy orbitals. This movement of electrons to higher orbitals is known as "bumping" or "jumping" to a higher orbital. Therefore, the correct answer is "are bumped to a higher orbital".

Rate this question:

4.

Valence electrons

Inner most electrons
Electrons in the outermost level
Excited electrons
None of the above

Correct Answer

A. Electrons in the outermost level

Explanation

Valence electrons are the electrons in the outermost energy level of an atom. These electrons are responsible for the chemical properties and reactions of the atom. The inner most electrons are located in the inner energy levels and do not participate in chemical bonding. Excited electrons are electrons that have absorbed energy and moved to a higher energy level. Therefore, the correct answer is "electrons in the outermost level" as they are the valence electrons.

Rate this question:

5.

What is wavelength?

The height of a wave
The number of waves per second
The distance between two waves
Hertz

Correct Answer

A. The distance between two waves

Explanation

Wavelength refers to the distance between two consecutive points on a wave that are in phase, such as two crests or two troughs. It is a fundamental property of waves and is usually represented by the Greek letter lambda (λ). The height of a wave refers to its amplitude, the number of waves per second is the frequency, and Hertz is the unit used to measure frequency.

Rate this question:

6.

Modern atomic theory thinks of electrons as

Particles
Waves
Both particles and waves
None of the above

Correct Answer

A. Both particles and waves

Explanation

Modern atomic theory views electrons as both particles and waves. This is based on the concept of wave-particle duality, which suggests that particles like electrons can exhibit both wave-like and particle-like behavior. This is supported by experiments such as the double-slit experiment, where electrons behave as waves when passing through a double slit and create an interference pattern. However, electrons also exhibit particle-like properties, such as having a definite mass and charge, and interacting with other particles in a particle-like manner. Therefore, the correct answer is both particles and waves.

Rate this question:

7.

What are the subshells?

S, p, d, e
S, p, d, f
A, b, c, d
None of the above

Correct Answer

A. S, p, d, f

Explanation

The subshells in an atom represent the different energy levels or orbitals within each principal energy level. The letters s, p, d, and f correspond to the different subshells. The s subshell can hold a maximum of 2 electrons, the p subshell can hold a maximum of 6 electrons, the d subshell can hold a maximum of 10 electrons, and the f subshell can hold a maximum of 14 electrons. Therefore, the correct answer is s, p, d, f.

Rate this question:

8.

In the bohr model electrons are shown as

Particles
Waves
-
+

Correct Answer

A. Particles

Explanation

The Bohr model represents electrons as particles. In this model, electrons are depicted as discrete entities with specific positions and orbits around the nucleus. This model was proposed by Niels Bohr in 1913 and was based on the idea that electrons occupy specific energy levels or shells. The particle nature of electrons in the Bohr model explains their discrete energy levels and the stability of atoms.

Rate this question:

9.

The ground state is when electrons are

Filling the lowest orbitals
Are bumped to a higher orbital
When they are excited
None of the above

Correct Answer

A. Filling the lowest orbitals

Explanation

The ground state refers to the lowest energy state that an electron can occupy in an atom. In this state, electrons are filling the lowest energy orbitals available to them. This means that they are occupying the orbitals closest to the nucleus before moving to higher energy levels. When electrons are excited, they gain energy and can be bumped to a higher orbital, but this is not the ground state. Therefore, the correct answer is "filling the lowest orbitals."

Rate this question:

10.

How many orbitals in a p subshell?

1
3
6
10

Correct Answer

A. 3

Explanation

The p subshell consists of three orbitals, namely px, py, and pz. Each orbital can hold a maximum of 2 electrons, resulting in a total of 6 electrons that can be accommodated in the p subshell. Therefore, the correct answer is 3.

Rate this question:

11.

The orbital diagram for O(Z=8) is

1s2,2s2,3s2,2p2
1s2,2s2,2p2,3s2
1s2,2s2,2p4
1s2,2s2,2p6

Correct Answer

A. 1s2,2s2,2p4

Explanation

The correct answer is 1s2,2s2,2p4. This is the correct orbital diagram for oxygen (O) with atomic number 8. The first energy level (n=1) has 2 electrons in the 1s orbital. The second energy level (n=2) has 2 electrons in the 2s orbital. The remaining 4 electrons are in the 2p orbital, with 2 electrons in one of the 2p orbitals and the other 2 electrons in another 2p orbital. This arrangement follows the Aufbau principle and the Pauli exclusion principle, which govern the filling of electron orbitals.

Rate this question:

12.

The orbital diagram for O(Z=8)

[/\\/] [/\\/] [/\\/][/\ ][/\ ]
[/\/\] [/\/\] [/\/\][/\ ][/\ ]
[/\\/] [/\\/] [/\\/][/\\/][ ]
None of the above

Correct Answer

A. [/\\/] [/\\/] [/\\/][/\ ][/\ ]

Explanation

The orbital diagram represents the arrangement of electrons in the energy levels of an atom. In this case, the orbital diagram shows the electron configuration for oxygen (Z=8). Each line or box represents an orbital, and the arrows represent the electrons. The diagram shows that oxygen has two electrons in the 1s orbital, two electrons in the 2s orbital, and four electrons in the 2p orbital. This arrangement follows the Aufbau principle and the Pauli exclusion principle, which govern the filling of electron orbitals.

Rate this question:

Physics Quiz Over Electromagnetic Radiation

What are some examples of Electromagnetic Radiation?

Quiz Preview

What is frequency (wave)

The excited state is when electrons are

Valence electrons

What is wavelength?

Modern atomic theory thinks of electrons as

What are the subshells?

In the bohr model electrons are shown as

The ground state is when electrons are

How many orbitals in a p subshell?

The orbital diagram for O(Z=8) is

The orbital diagram for O(Z=8)