Atomic Structure and Isotopes

Atomic Structure

What is an atom?

• The smallest particle of a chemical element that can exist.
• Atoms are the basic building blocks of ordinary matter. 

What does an atom consist of?

Atoms are made from smaller subatomic particles.

• Atoms consists of a central nucleus surrounded by one or more electrons.

• Atoms consist of:
• A central necleus surrounded by shells.
• Nutrons
• Protons
• Electrons

Nucleus:

• Central part of the atom.
• Most of the atoms mass is located here.
• Made of protons and neutrons.

Neutrons:

• Neutrons as the name suggests are neutral, uncharged particles.
• Found within the atomic nucleus.

Protons:

• Protons are positively charged particles.
• They have a relative charge of +1.
• Found in the nucleus.

Electrons:

• Electrons are  arranged in energy levels or shells surrounding the nucleus. Each shell can hold different numbers of electrons.
• Electrons are negatively charged particles.
  
• They have…