nuclear force

What is a beta particle made of?

• One proton

• A helium particle

• One electron

• One proton and one neutron

What is emitted during Alpha Radiation?

• A helium nuclei.
• A helium atom
• Gamma Rays.
• Positrons

How many protons does gold atom have?

• 197
• 79
• 118
• 276

What is the mass of an alpha particle?

• 1
• 2
• 3
• 4

What is the definition of an isotope?

• An atom with different electron number to proton number
• An atom with different proton number from neutron number
• An atom with different number of protons from the periodic table
• An atom with a different number of neutrons from the periodic table

Neutrons ......

• has positive electric charge with equal magnitude to that of an electron.

• has no net electric charge.

• has negative electric charge.

• orbiting the nucleus.

What kind of force holds the nucleus together?

• Strong Nuclear Force

• Weak Nuclear Force

• Gravitational Force

• Electromagnetic Force

What is the number of neutrons in Cesium?

• 55 neutrons

• 76 neutrons

• 84 neutrons

• 106 neutrons

• 139 neutrons

The atomic number of a given element is

equivalent to which of the following?

• Proton number in the nucleus

• Neutron number in the nucleus

• Sum of the protons and neutrons in the

  nucleus

• Sum of the protons, neutrons and electrons

What happens to the atomic number during alpha decay?

• The atomic number decreases by 4
• The atomic number increases by 1
• The atomic number decreases by 2.
• The atomic number stays the same.