Unit 01 Test Review

The mass number of the atom represented in the graphic is _.

• 8

• 7

• 15

• 14

What is the atomic number of the atom represented in the image?

Which of the statements correctly represent the mass of subatomic particles?

• An electron has the same mass as a proton.

• An electron has much more mass than a neutron.

• An electron has about the same mass as a neutron.

• An electron has much less mass than a proton.

Which of the statements below correctly represent the mass of subatomic particles?

• An electron has much less mass than a neutron.

• A proton has more mass than an electron.

• A proton has less mas than an electron.

• A proton has about the same mass as a neutron.

What is the amu (atomic mass unit) of a proton?

• 0.00055 amu

• 1 amu

What is the amu (atomic mass unit) of a neutron?

• 1 amu

• 0.00055 amu

What is the amu (atomic mass unit) of an electron?

• 1 amu

• 0.00055 amu

How many protons, neutrons, and electrons are in an atom of nitrogen? Justify your answer with reasonable evidence.

How do you determine the amount of neutrons in an atom using information from your periodic table?

• Electrons + Protons

• Mass number - Atomic number

• Mass number + Atomic number

• Electrons - Protons

An atom of a certain element is soft, ductile, malleable, and lustrous. This atom has an atomic number of 47 and a mass number of 108.

There are _ neutrons in this atom.