The Atom: Mid Unit Comprehension Check

What qualifications MUST an item have to have to be considered "matter?" (check all that apply)

• Have mass

• Be able to be seen and felt with senses

• Have Volume

• Has a scale to count

Check all items that would be considered "matter" from the list below (check ALL that apply)

• heat

• lightbulb

• Dr. Pepper

• Temperature

• Fear

All matter is made of what?

• energy 
• atoms 
• electrons 
• compounds 

Tags

NGSS.MS-PS1-1

Which subatomic particle does this gif's movement best represent? (what does this gif represent in the atom?)

• Protons

• Neutrons

• Electrons

How many protons does an atom of Sodium (Na) have?

• 12

• 11

• 23

Tags

NGSS.MS-PS1-1

The atomic number is the number of ____ in the nucleus. It's the element's "identification"!

• electrons

• neutrons

• protons

Tags

NGSS.MS-PS1-1

The majority of the atoms' mass is comes from the composition of what subatomic particles?

• electrons and protons

• neutrons and electrons

• protons and nucleons

• protons and neutrons

If an atom's atomic number is 2 and has a mass of 4, how many neutrons does the atom have?

• 2

• 4

• 6

• 0

Tags

NGSS.MS-PS1-1

A certain atom has 26 protons, 26 electrons, and 30 neutrons. What is its mass number?

• 26

• 30

• 52

• 56

Tags

NGSS.MS-PS1-1

How many neutrons are in a Gold atom?

• 79
• 196
• 118
• 275

Tags

NGSS.MS-PS1-1