Understanding Atomic Structure

The center of an atom is called the ______.

• Electron

• Proton

• Nucleus

• Neutron

Electrons are the ______ of the three subatomic particles.

• Largest

• Smallest

• Heaviest

• Lightest

What charge do neutrons have?

• Positive

• Negative

• No charge

• Both positive and negative.

Where are electrons located in an atom?

• Inside the nucleus

• Orbiting around the nucleus

• Between protons and neutrons

• In the center of the atom.

Atoms can be combined to form ______ through chemical reactions.

• Molecules

• Elements

• Compounds

• Mixtures

Fill in the blank: The production of insulin molecules to treat diabetes was made possible by the work of ___.

• Physicists

• Biochemists

• Astronomers

• Geologists

Fill in the blank: Elements can be combined to make ___.

• Atoms

• Molecules

• Cells

• Tissues

What is the role of chemists in creating molecules?

• To study stars

• To create medicines

• To build houses

• To grow plants

Which of the following is an example of an element?

• Water

• Gold

• Salt

• Sugar

What is the primary goal of using molecules in the medical field?

• To develop new medicines

• To build structures

• To create art

• To design clothing