Atoms Assignment

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How many protons does this atom have? How many neutrons does this atom have? How many electrons does this atom have?

6 8 6

Which of these phrases would go in the overlap? Check all that apply.

Found in the nucleus Has mass of one amu

Cora wants to draw a model of an atom for her project for the science fair. She wants to draw an atom that has two protons, four neutrons, and two electrons. Which model is like Cora's?

B

Jaiden is writing a report about the structure of the atom. In her report, she says that the atom has three main parts and two subatomic particles. Do you agree with her? Why or why not?

I disagree with her because an atom has two main parts: the nucleus and the electron cloud. Atoms have three subatomic particles: protons, neutrons, and electrons.

Which statement(s) correctly compare the masses of protons, neutrons, and electrons? Check all that apply.

Protons and neutrons have similar mass. Electrons are smaller than a proton or a neutron.

Knowing what you know about the nucleus and the subatomic particles in the nucleus, what do you think is the charge of the nucleus of an atom?

The nucleus of an atom has a positive charge because the proton is positive and the neutron is neutral.

Which statement correctly describes the nucleus of the atom?

The nucleus of the atom contains most of the mass of an atom.

An atomic scientist was studying an atom and through experimentation found that the total negative charge of the area surrounding the nucleus is -9. Which statement correctly describes this atom?

This atom has nine electrons.


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