Subatomic Particles

which explanation of this notation is correct?

• 12 is proton #

• 6 tells you there are 6 neutrons

• 6 tells you there are 6 protons

• 12 is not a mass # here

Tags

NGSS.MS-PS1-1

Which particles are found in the nucleus

• electrons and protons
• neutrons and protons
• neutrons and electrons
• footballs and soccer balls

How many protons are in the nucleus of Helium (He, atomic number 2)

• 0, they are all outside of the nucleus
• 1
• 2
• 3

The positive particles of an atom are 

• electrons 
• positrons 
• neutrons 
• protons 

What is the atomic number for an element with three protons?

• 2
• 1
• 3
• 6

What is the mass number of "F"

• 9

• 18

• 17

• 19

An atom becomes _______ when it loses electrons.

• Positive

• Negative

• Neutral

• Invisible

What is the same for both atoms?

• nucleon number

• number of electrons

• number of neutrons

• number of protons

How many neutrons does the isotope of lithium have?

• 8
• 3
• 4
• 5

What do these isotopes of carbon all have in common?

• neutrons & mass number
• atomic number and neutrons
• atomic number and electrons
• protons, atomic number, and mass number