SOL PS.3 Model of the Atom

Which subatomic particle is being described: Has a mass of 1.0 amu, is found in the Nucleus, but it cannot be used to safely identify an atom because it can vary (Isotopes!).

• Protons

• Neutrons

• Electrons

What would be the Atomic Mass of this atom?

Tags

NGSS.MS-PS1-1

The model of the atom we first used in class (the Bohr model) places Electrons on specific energy shells around the Nucleus. How many Electrons can go on the 2nd shell?

• 2 Electrons

• 4 Electrons

• 8 Electrons

• 18 Electrons

Select all of the descriptions below that are true for Protons.

• Negative electrical charge

• Found inside the Nucleus

• Has virtually no mass

• Has a mass of 1.0 amu

• Positive electrical charge

If you were asked to identify the Element an atomic represents, which subatomic particle would you count?

• Protons

• Neutrons

• Electrons

• You can use all three!

Tags

NGSS.MS-PS1-1

Which two subatomic particles make up the mass of an atom?

• Protons

• Neutrons

• Electrons

Tags

NGSS.MS-PS1-1

Which subatomic particle is being described? Has virtually no mass, is found moving around the Nucleus, and has a negative electrical charge.

• Protons

• Neutrons

• Electrons

• Quarks

If an atom contained 8 Protons within its Nucleus, but only had 6 Electrons moving around said Nucleus, what would be its electrical charge?

• +2

• -2

• 0

• -8

• +8

Which two subatomic particles are actually made up of an even smaller subatomic particle called the Quark? Hint: quarks are believed to be the source of all mass!

• Protons

• Neutrons

• Electrons

Traditionally atoms have an equal number of Protons and Electrons. This means that the overall electrical charge of the atom would be what?

• Positive (+)

• Negative (-)

• Neutral (0)