Which property of an atom primarily influences its ability to form chemical bonds?

• The arrangement of electrons in outer shells

• The presence of isotopes

• The number of electrons on the inner shells

• The total mass of the atom

Which type of bonding is predominant in NaCl?

• Covalent

• Metallic

• Ionic

• Van der Waals

What type of bond involves the sharing of electrons?

• Ionic bond

• Covalent bond

• Hydrogen bond

• Metallic bond

Which type of primary bonding allows for the free movement of electrons?

• Ionic

• Covalent

• Hydrogen

• Metallic

What is the primary reason metals are good electrical conductors?

• Their atoms are very close together

• They have high melting points

• They have free-moving electrons

• They have strong bonds

Which of the following materials is primarily held together by covalent bonds?

• Silicon carbide

• Polonium

• Diamond

• Argon

Which type of bond generally has the highest melting point?

• Covalent

• Ionic

• Hydrogen

• Van der Waals

What is the correct notation for a crystallographic direction in cubic systems?

• (hkl)

• {hkl}

• [hkl]

• <hkl>

How are crystallographic planes represented in Miller indices notation?

• (hkl)

• {hkl}

• [hkl]

• <hkl>

Which of the following is a family of equivalent crystallographic directions?

• (100)

• [110]

• <100>

• {111}