Atomic Structure and Subatomic Particles

What is the charge of a proton?

• Negative

• Neutral

• Positive

• No charge

Where are neutrons located in an atom?

• Electron cloud

• Nucleus

• Outer shell

• Proton layer

What determines the atomic number of an element?

• Number of electrons

• Number of neutrons

• Number of protons

• Atomic mass

What role do neutrons play in an atom?

• Determine the atomic number

• Involved in chemical reactions

• Add mass but don't change the type of element

• Affect the charge of the atom

What is the formula for calculating the atomic mass number?

• Number of protons + Number of electrons

• Number of neutrons + Number of electrons

• Number of protons + Number of neutrons

• Number of protons + Atomic number

What is the charge of an electron?

• Positive

• Neutral

• Negative

• No charge

What is the location of electrons in an atom?

• Nucleus

• Electron cloud

• Proton layer

• Neutron shell

How do protons affect the atomic number?

• They decrease it

• They determine it

• They have no effect

• They increase it

What is the role of electrons in chemical reactions?

• They determine the atomic number

• They are not involved

• They are involved

• They change the type of element

What is the smallest unit of matter?

• Molecule

• Atom

• Proton

• Neutron