Consider the following model of a generic atom. Which of the following is correct regarding the "regions" labeled 1 and 2?
A)Region 1 contains most of the mass and is negatively charged.
B)Region 2 contains very little mass and is positively charged.
C)Region 1 contains most of the mass and is positively charged.
D)Region 2 contains very little mass and is not charged.
E)Region 1 contains most of the mass and not charged.

Question

Consider the following model of a generic atom.  Which of the following is correct regarding the "regions" labeled 1 and 2?
A)Region 1 contains most of the mass and is negatively charged. 
B)Region 2 contains very little mass and is positively charged. 
C)Region 1 contains most of the mass and is positively charged. 
D)Region 2 contains very little mass and is not charged. 
E)Region 1 contains most of the mass and not charged.

Quizplus · Accepted Answer

Region 1, which represents the nucleus, contains the majority of the atom's mass and is positively charged due to the presence of protons. Region 2, which represents the electron cloud, contains very little mass and is negatively charged due to the presence of electrons. Therefore, option C is the correct choice.

Consider the Following Model of a Generic Atom