Atomic Structure

What 3 subatomic particles were mentioned that make up an atom?

• protons, neutrons, electrons

• particles, protons, electrons

What does the word atom mean?

• Indestructible 

• Indivisible.

• Atomos

Tags

CCSS.L.4.4B

CCSS.L.5.4B

CCSS.L.6.4B

CCSS.L.7.4B

CCSS.L.8.4B

Which has the smallest mass? 

• electron

• Neutron

• proton

Where are electrons found? 

• in the nucleus

• outside of the nucleus in the electron cloud

• outside of the atom

Which two subatomic particles are found in the nucleus of an atom? 

• neutrons and electrons

• protons and neutrons

• protons and electrons

The number of ________ determines the atomic number (the element's number on the periodic table)

• Protons

• Electrons

• Neutrons

The atomic number is the...

• number of neutrons in the nucleus of the atom

• number of protons and electrons in the atom

• the number of protons in the nucleus of the atom

What is the defining characteristic of each element (what makes them different from every other element)? 

• the number of protons

• the size of the atom

• the number of electrons

So if you were to change the amount of neutrons in an atom's nucleus, what would change??

• nothing, it has no charge.

• atomic number

• atomic mass

Atomic mass =

• protons + neutrons

• electrons + neutrons

• protons + electrons