Atoms & Subatomic Particles🧪

What are the three main subatomic particles?

Protons, Neutrons, and Electrons

Where are protons located in an atom?

In the nucleus (center)

What is the charge of a proton?

Positive (+)

What is the charge of a neutron?

Neutral (0)

What is the charge of an electron?

Negative (-)

Where are electrons found?

In orbitals or shells around the nucleus

What determines the identity of an element?

The number of protons (atomic number)

What is the atomic number?

The number of protons in an atom

What is the mass number (atomic mass)?

The total number of protons + neutrons

In a neutral atom, how do protons and electrons compare?

They are equal in number

What happens when an atom gains or loses electrons?

It become an ion (charged atom)

What is an isotope?

Atoms of the same element with different numbers of neutrons.

Which particle is involved in chemical bonding and reactions?

Electrons