Atoms and Isotopes Review

What is an atom?

• The guy down the street.

• Smallest possible unit into which matter can be divided, while still maintaining its properties.

• Biggest possible unit that cannot be divided

What is Matter?

• How you feel about someone.

• The smallest unit found on Earth

• Anything that has mass and takes up space (volume)

Positively charged particles

• Proton

• Electron

• Neutron

What is the Periodic Table of Elements?

• Where all elements are listed according to qualities and the Atomic Number.

• A table that Aristotle ate at with Einstein.

• Where elements are listed alphabetically.

What is the Periodic Table of Elements?

• Where all elements are listed according to qualities and the Atomic Number.

• A table that Aristotle ate at with Einstein.

• Where elements are listed alphabetically.

What are Neutrons?

• Contribute to the atomic mass

• Help make up the nucleus of the atom.

• Neutral particles; have no electric charge.

• All of the above

What are electrons?

• Positively charged particles

• Negatively charged particles

• Particles that charge you

What are Valence Electrons?

• Electrons in the inner energy level

• Electrons in the outer energy level

• Electrons that validate the nucleus

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The mass number is when you add what?

• Protons

• Neutrons

• Electrons

all matter is made of what 

• energy 
• atoms 
• electrons 
• compounds