Exploring Atomic Structure Concepts

What is the primary reason for learning about atomic structure?

• To understand chemical reactions

• To prepare for advanced physics

• To understand the basic unit of matter

• To improve mathematical skills

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What determines the identity of an element?

• Atomic mass

• Number of electrons

• Number of neutrons

• Number of protons

What happens when you add one electron to a hydrogen atom with one proton?

• It becomes a neutral atom

• It remains a positive ion

• It becomes a positive ion

• It becomes a negative ion

How many neutrons are in a neutral atom of helium?

• Four

• Three

• Two

• One

What creates a charged helium atom?

• Adding an electron

• Removing an electron

• Removing a neutron

• Adding a proton

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How many electrons are in the first orbital of a neutral neon atom?

• Eight

• Ten

• Five

• Two

What is the total number of neutrons in a neon atom?

• Twelve

• Twenty

• Ten

• Eight

What does the atomic number of an element represent?

• Total mass of the atom

• Number of protons

• Number of neutrons

• Number of electrons

Which statement best describes the importance of atoms?

• Atoms are not essential to the study of science

• Atoms make up everything and are fundamental to understanding matter

• Atoms are large enough to be seen with a microscope

• Atoms are only important in chemistry

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What does the presence of neutrons in the nucleus affect?

• The charge of the atom

• The chemical properties

• The mass of the atom

• The color of the atom