AMU Practice

What is the mass number of an atom?

• Protons + Electrons

• Protons + Neutrons

• Neutrons + Electrons

• Protons + Neutrons + Electrons

What are isotopes?

• Atoms with different numbers of protons

• Atoms with different numbers of electrons

• Atoms with different numbers of neutrons

• Atoms with the same number of neutrons

The mass number of an atom is the sum of which particles?

• Protons and Electrons

• Neutrons and Electrons

• Protons and Neutrons

• Protons, Neutrons, and Electrons

Isotopes are atoms with the same number of protons but different numbers of what?

• Electrons

• Neutrons

• Protons

• Atomic masses

Which of the following is the correct atomic mass of Carbon as shown in the image?

• 6.01

• 12.01

• 14.01

• 16.01

Which of the following is necessary to know the atomic mass?

• Mass of each isotope

• Volume of each isotope

• Charge of each isotope

• Color of each isotope

Tags

NGSS.HS-PS1-7

To find the atomic mass, you need to know the natural percentage abundance of what?

• Each electron

• Each proton

• Each isotope

• Each neutron

If you earn a grade of 100 on a quiz, what is the weighted contribution of this quiz to your overall grade?

• 70%

• 20%

• 10%

• 100%

If you earn a grade of 100 on homework, what is the weighted contribution of this homework to your overall grade?

• 10%

• 20%

• 70%

• 100%

What is the sum of the products in the weighted average calculation?

• 76

• 86

• 66

• 96