Bonding-Bio 1

Which of the following is a single building block of matter?

• Molecule

• Atom

• Cell

• Proton

What are molecules?

• Atoms bonded (chemically joined) together

• Atoms separated from each other

• Only one type of atom

• None of the above

Tags

NGSS.MS-PS1-1

What is the difference between atoms and molecules as shown in the diagram?

• Atoms are single spheres of different sizes and colors, while molecules are groups of two or more spheres joined together.

• Atoms are made up of molecules, while molecules are single spheres.

• Atoms are always larger than molecules in the diagram.

• Molecules are single spheres, while atoms are groups of spheres joined together.

Tags

NGSS.MS-PS1-1

What type of covalent bond is formed when there is equal sharing of electrons?

• Polar

• Non-Polar

• Ionic

• Metallic

What type of covalent bond is formed when there is unequal sharing of electrons?

• Polar

• Non-Polar

• Ionic

• Metallic

Tags

NGSS.HS-PS1-1

What is being shared between Atom 1 and Atom 2 to form a covalent molecule?

• Electrons

• Protons

• Neutrons

• Atomic nuclei

The tug-of-war cartoon for ionic bonding would show:

• One atom completely pulling the electron away from the other atom.

• Both atoms equally sharing the electron between them.

• Both atoms pulling the electron but not completely transferring it.

• No interaction between the atoms at all.

What kind of charge does the hydrogen atom in a water molecule have?

• Slight positive charge

• Slight negative charge

• No charge

• Full positive charge

What kind of charge does the oxygen atom in a water molecule have?

• Slight positive charge

• Slight negative charge

• No charge

• Full negative charge

Why is water considered a polar molecule?

• Because it has a uniform charge distribution due to electrons being shared equally.

• Because it has hydrogen bonding.

• Because the electrons between the O and H in the water molecule are shared unequally.

• Because it can dissolve nonpolar O2 molecules