Types of bonds

What is a common characteristic of ionic compounds?

• high melting point

• soft

• malleable

• liquid at room temperature

Why do traffic lights change color?

• Cars are free to move.

• People are free to move.

• Signals are strong.

• There are weak interferences in the system.

Why are ionic bonds strong?

• they are made of metals

• every negative is attracted to every positive

• they have high melting point

• they are not, sometimes they are liquid

When ice melts in a glass of water, its state is

• still solid

• liquid

• gas

• depends on temperature

What is the correct ionic formula for the compound formed between calcium and sulfur?

• Ca₂S₂

• CaS

• S₂Ca₂

• SCa

Identify the compound from its formula: BaI₂

• Iodine barium

• Iodine bariumide

• Barium iodine

• Barium iodide

Water is an example of what?

• molecular compound (covalent compound)

• ionic compound

In a chemistry class, what is the definition of a chemical bond?

• The force that holds atoms together

• the sum of the number of neutrons and protons in an atomic nucleus

• A chart of the elements showing the repeating pattern of their properties

• Electrons on the outermost energy level of an atom

What is the term used for electrons involved in bonding?

• chemical

• valence

• s level

• attractive

what type of bond is the strongest

• single
• Double
• coordination
• triple