engineering materials 3 structure of materials

What does the coefficient of expansion measure?

• The change in magnetic properties of a material with temperature

• The change in size of material relative to the temperature

• The change in resistance to corrosion due to temperature

• The change in stability of a material with temperature

What are the main subatomic particles found in an atom?

• Protons, neutrons, and electrons

• Protons, neutrons, and isotopes

• Neutrons, electrons, and positrons

• Protons, isotopes, and electrons

Which subatomic particle is positively charged?

• Neutron

• Electron

• Proton

• Isotope

Where are the protons and neutrons located in an atom?

• In the nucleus

• In the electron cloud

• In the atomic orbitals

• Outside the atom

What does the Periodic Table represent?

• A list of chemical reactions

• A list of molecular structures

• A list of all known elements

• A list of atomic numbers only

What are electrons within an atom described as?

• Positively charged particles in the nucleus

• Negatively charged particles orbiting the nucleus in shells

• Neutral particles in the nucleus

• Positively charged particles orbiting the nucleus in shells

What makes an atom electrically neutral?

• An equal number of protons and neutrons

• An equal number of electrons and neutrons

• An equal number of protons and electrons

• An unequal number of protons and electrons

What is the term used to describe the joining together of atoms?

• Fusion

• Bonding

• Mixing

• Combining

Which of the following is NOT a type of strong bond?

• Ionic bonding

• Covalent bonding

• Metallic bonding

• Van der Waals forces

What are weak intermolecular bonds sometimes referred to as?

• Primary bonds

• Secondary bonds

• Tertiary bonds

• Quaternary bonds