Covalent Bonds Part 1

How do covalent bonds form?

• Donating & receiving valence e- between atoms.
• Opposite slight charges attract each other between compounds.
• Scientists are still not sure how they form.
• Sharing valence e- between atoms.

What is a valence electron?

• The sum of neutrons and protons.
• The # of electrons in the last shell.
• A type of bond.
• A popular compound.

Which of these is not a real bond in chemistry?

• James

• Ionic

• Covalent

• Metallic

Why do elements bond?

• To be friends

• To create a new element

• To become stable

• To get bigger

Ionic bonds are between...

• nonmetals and nonmetals
• carbon and oxygen
• metals and nonmentals
• hydrogen and chlorine

Covalent bonds are between...

• two or more nonmetals
• sodium and chlorine
• metals and metals
• metals and nonmetals

What kind of chemical bond forms between a metal and a nonmetal?

• ionic
• covalent
• fake
• metallic

What kind of bond forms between two nonmetals?

• ionic 
• covalent
• metallic
• fake

Which statement best describes an element?

• made from mixture 
• thousands in the world
• pure, made of only one atom
• can be separated 

Carbon is considered an element while carbon dioxide is considered a compound. This is because carbon dioxide is –

• a gas at room temperature.
• made of two different elements.
• given off by green plants.