Science Electrons , Protons , Neutrons

Atomic Number is the number of ___________

• Neutrons

• Protons

• Atoms

• Electrons

What is the Mass Number of Argon?

• 24

• 30

• 18

• 40

What is the Atomic Symbol of Sodium and Carbon?

• Mg and Na

• H and Li

• Na and C

• F and C

Atomic Number is the AVERAGE number of ________ + ________of

all the isotopes of an atom.

• Neutrons and

  Electrons

• Electrons and

  Protons

• Protons and

  Neutrons

• Electrons and

  Neutrons

True or False

Protons and Neutrons have the same charge.

• True

• False

Answer explanation

Protons have a+ charge and Neutrons have No Charge.

True or False

Protons and Electrons have Opposite Charge

• True

• False

True or False

Protons and Neutrons have the same mass

• True

• False

What Charge does the Nucleus have?

Which Subatomic Particle has a negative charge?

Which Subatomic Particles have the same mass?

_______and _______