What type of chemical bond forms between metal and nonmetal ions?

• Ionic bond

• Covalent bond

• Metallic bond

• Hydrogen bond

Why do ionic compounds have high melting points?

• Due to strong electrostatic forces between ions

• Because of weak intermolecular forces

• Due to the presence of free electrons

• Because they are composed of large molecules

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which of the following is an example of an ionic compound?

• Table salt

• Water

• Carbon dioxide

• Methane

What property of ionic compounds allows them to conduct electricity when dissolved in water?

• They dissociate into ions

• They have free electrons

• They form covalent bonds

• They have a metallic structure

Which of the following substances are IONIC compounds?

• NaCl

• H₂O

• KF

• CO₂

If an atom gains an electron, it becomes a(n) ​ (a)   which is ​ (b)   charged. If an atom loses an electron, it becomes a(n) ​ (c)   which is ​ (d)   charged.

• anion
• negatively
• cation
• positively
• neutrally

Lithium(Li) is a ​ (a)   and Chlorine(Cl) is a ​ (b)   . When they reacted, they form ​ (c)   bonds because metal tends to form ​ (d)   cation and nonmetal tend to ​ (e)   anion.

• metal
• nometal
• ionic
• positively
• negatively

Tags

NGSS.MS-PS1-1

Using a Periodic Table, determine the name of this atom.

• Magnesium

• Chlorine

• Phosphorus

• Oxygen

Tags

NGSS.MS-PS1-1

​ ​ (a)   atom is a metal because metals tend to lose their valence electrons and (b)   atom is a nonmetal ​ because it tends to gain valence electron(s).

• Sodium
• Chlorine

Tags

NGSS.MS-PS1-1

Lithium Chloride is an ionic compound that have ​ (a)   melting and boiling points because of the strong ​ (b)   force between cations and anions.

• low

• high
• attractive
• repulsive

Tags

NGSS.MS-PS1-4