Mass Defect/Binding Energy Review

How many protons does P-30 have?

• 30
• 16
• 12
• 15

Which of the following could have 14 neutrons?

• Al-27
• Si-29
• Mg-25
• Na-22

How many protons does this isotope of titanium have?

• 48
• 22
• 26
• 70

How many neutrons does the isotope of lithium have?

• 8
• 3
• 4
• 5

Found in the nucleus of the atom

• electrons only
• protons only
• neutrons and protons
• neutrons and electrons

Isotopes are atoms of the same element that have the same number of __________ but different number of __________ . Therefore, isotopes of the same element have different masses. 

• protons, neutrons
• protons, electrons
• neutrons, protons
• electrons, protons

Subatomic particle with a charge of 0

• neutron
• proton
• electron
• quark

Protons and neutrons is so small, they are assigned a mass of 1 in these units 

• grams
• milligrams
• amu (atomic mass unit)
• mass number

The mass of this particle is so small that it is not counted.

• proton
• electron
• neutron
• quark

Tritium is an isotope of hydrogen. The mass of the tritium isotope, H is 3.0160490 amu. Calculate the mass defect.

• -0.001

• 0.091

• 0.910

• 0.001