Subatomic Particles and Atomic Structure

Flashcards covering basic concepts of subatomic particles, atomic structure, and electron configuration.

What is the charge of a proton?

Positive (+) charge

What is the charge of an electron?

Negative (-) charge

What is the charge of a neutron?

No charge (neutral)

What subatomic particles make up the nucleus of an atom?

Protons and neutrons

What does the atomic number represent?

The number of protons in an atom

How is the mass number of an atom calculated?

The total number of protons and neutrons

What distinguishes an isotope from a standard atom of the same element?

It has the same number of protons and electrons but a different number of neutrons

How many electrons are allowed on the first atomic ring?

Only 2 electrons

What are valence electrons?

Electrons located in the outermost shell (or cutter shell) of an atom