Chemistry Quiz: Atomic Structure

If an element has 10 protons and 12 neutrons, what is its atomic number?

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What is an element?

• A substance that cannot be split into simpler units by an ordinary chemical process

• A substance that can be split into simpler units by an ordinary chemical process

• A mixture of different types of atoms

• A compound made up of two or more types of atoms

How is the atomic number designated?

• A

• Z

• N

• P

What is the sum of protons and neutrons called?

• Atomic number

• Mass number

• Proton number

• Neutron number

Which letter represents the mass number?

• Z

• P

• N

• A

What does the chemical symbol of an element represent?

• The atom of the element

• The molecular structure of the element

• The physical state of the element

• The atomic mass of the element

How are the chemical symbols of elements derived?

• From their physical properties

• From their uses

• From their chemical properties

• From the names of the elements

What does 'Z' stand for in the context of atomic structure?

• Mass number

• Atomic number

• Neutron number

• Proton number

What must be true for a neutral atom?

• The number of protons equals the number of electrons

• The number of protons equals the number of neutrons

• The number of neutrons equals the number of electrons

• The number of protons plus the number of neutrons equals the number of electrons

What is the representation of the atoms of elements called?

• Chemical formula

• Chemical symbol

• Chemical notation

• Chemical equation