Unit 2 Atomic Structure and Isotopes

How many protons does this isotope have?

• 5

• 8

• 3

• 11

How many neutrons does this isotope have?

• 3

• 5

• 8

• 11

What is the mass number of this isotope?

• 3

• 11

• 5

• 8

What two particles are found in the nucleus?

• electrons and protons

• electrons and neutrons

• protons and neutrons

• all 3 are found in the nucleus

What particle is the same as atomic number?

• electrons

• neutrons

• protons

• nucleus

What is the charge of a neutron?

• negative

• neutral

• positive

How do you find the mass number?

• subtract protons minus neutrons

• add electrons and protons

• add protons and neutrons

• cry

What is the overall charge of the nucleus?

• negative

• positive

• neutral

What is the overall charge of an atom?

• positive

• neutral

• negative

What particle must change to change one element into a different element?

• neutrons

• electrons

• protons