Ionic & Covalent Bonds

Which is described as the force holding atoms together?

• formula unit
• cation
• lattice
• chemical bond

How many single covalent bonds can carbon form?

• 2
• 1
• 4
• 3

Which category of elements is commonly used to make computer chips and solar cells due to their ability to conduct electricity only under certain conditions?

• metals
• metalloids
• nonmetals
• noble gases

Which is the most important characteristic in determining an element's chemical properties?

• the number of protons and neutrons in its nucleus
• which period it is found in
• the number of valence electrons it contains
• its outermost energy level

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Formed when 2 atoms share electrons

• Ionic
• Covalent

Identify the period and group numbers of the element with the electron configuration [Ne]3s²3p⁴.

• period 2, group 4
• period 3, group 4
• period 3, group 16
• period 2, group 16

Tags

NGSS.HS-PS1-1

Which is the charge that results when oxygen becomes an ion?

• +3
• +2
• -2
• -3

When a chemical bond is formed, the constituent atoms acquire the stable valence electron configuration of noble gases, which is referred to as a(n)...

• pentet
• octet
• octagon
• noble gas bond

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

In general, this type of bond will form a compound with a high melting point.

• Ionic
• Covalent

Tags

NGSS.HS-PS1-4

Sucrose (C₁₂H₂₂O₁₁) is commonly used in baking.

• Ionic
• Covalent