What describes the current model of the atom?
A)That electrons and protons move randomly around a nucleus.
B)Electrons travel as waves in the electron cloud that surrounds the nucleus.
C)Electrons orbit the nucleus like planets orbit the sun.
D)Protons orbit the nucleus like planets orbit the sun.
My answer is C
maybe look at B?
oh okay In the atomic orbital model, the atom consists of a nucleus surrounded by orbiting electrons. These electrons exist in atomic orbitals, which are a set of quantum states of the negatively charged electrons trapped in the electrical field generated by the positively charged nucleus. Classically, the orbits can be likened to the planets orbiting the sun. Which is why I was thinking C. However, the atomic orbital model can only be described by quantum mechanics, in which case the electrons are more accurately described as standing waves surrounding the nucleus.
Which would be the 2nd choice: "electrons travel as waves in the electron cloud that surrounds the nucleus."
Which statement best describes Rutherford's model of the atom?
A - It is like an avocado with the pit representing the nucleus.
B - It is like a aquarium with swimming fish representing positive charges.
C - It is like a fried egg with the yolk representing the nucleus.
D - It is like a huge stadium with positively charged marble at the center.
Lesson 1 unit 3
1. B
2. A
3. B
4. D
To determine the correct answer, let's analyze each option:
A) "That electrons and protons move randomly around a nucleus." This is not the current model of the atom. In the classical model proposed by Rutherford, electrons revolve around the nucleus, but it has been updated with new information.
B) "Electrons travel as waves in the electron cloud that surrounds the nucleus." This option is closer to the current model. According to quantum mechanics, electrons are described as both particles and waves, and their positions around the nucleus are described by probabilities rather than fixed orbits.
C) "Electrons orbit the nucleus like planets orbit the sun." This option is the classic understanding of the atomic model, proposed by Niels Bohr in the early 20th century. However, it is not the current model and was eventually replaced by the quantum mechanical model.
D) "Protons orbit the nucleus like planets orbit the sun." This option is not accurate. Protons are part of the nucleus and do not orbit it like planets around the sun.
Based on the analysis, option B is the most accurate description of the current model of the atom. Therefore, the correct answer is B) Electrons travel as waves in the electron cloud that surrounds the nucleus.