Atomic Structure EQ Checkpoint Review

This subatomic part has the majority of the mass of the atom is holds the protons and neutrons

• Orbital

• Electron

• Valence Electron

• Nucleus

Which of the following BEST describes the structure of an atom?

• The nucleus is the dense center of the atom composed of protons and neutrons. Surround the nucleus is an electron cloud composed of electrons

• The nucleus is the dense center of the atom composed of electrons and neutrons. Surrounding the nucleus is an electron cloud composed of protons.

• The electron cloud is the dense center of the atom composed of electrons. Surrounding the electron cloud is a nucleus composed of protons and neutrons

• The electron cloud is the dense center of the atom composed of protons and neutrons. Surrounding the electron cloud is a nucleus composed of electrons.

Which part of the diagram represents an ELECTON?

• A

• B

• C

Which part of the diagram represents an NEUTRON?

• A

• B

• C

Which part of the diagram represents a PROTON?

• A

• B

• C

Which of the following correctly identifies the overall charge of an unreacted atom?

• Postive

• Negative

• Neutral

Which of the following terms best identifies the structure in which the arrow is pointing?

• Electron Cloud

• Proton

• Neutron

According to your periodic table, how many neutrons does an atom of Fluorine contain

• 9

• 10

• 19

An unknown element is a gas at room temperature, has 6 valence electrons, and 16 neutrons. The element is most likely _____.

• S

• N

• Te

This mystery element has 4 energy levels and 20 neutrons. The element is most likely...

• K

• Ca

• Ga