Distinguishing Atoms from Molecules

What analogy is used to explain the difference between atoms and molecules?

• Atoms are like puzzle pieces, and molecules are the completed puzzle.

• Atoms are like Lego blocks, and molecules are the structures built with them.

• Atoms are like grains of sand, and molecules are the beach.

• Atoms are like letters, and molecules are the words.

Tags

NGSS.MS-PS1-1

What are the main components of an atom's nucleus?

• Protons and neutrons

• Electrons and quarks

• Neutrons and electrons

• Protons and electrons

Where do electrons reside in an atom?

• In the nucleus

• In energy levels around the nucleus

• In the neutron field

• In the proton field

Tags

NGSS.HS-PS1-1

What determines the type of atom?

• The number of electrons

• The number of neutrons

• The number of protons

• The number of energy levels

How many different kinds of atoms are there approximately?

• 200

• 150

• 100

• 50

Tags

NGSS.MS-PS1-1

What is the chemical symbol for oxygen?

• O

• N

• H

• C

What is a molecule of water composed of?

• Two oxygen and two hydrogen

• Two oxygen and one hydrogen

• One oxygen and one hydrogen

• One oxygen and two hydrogen

Tags

NGSS.MS-PS1-1

What is the chemical formula for ethanol?

• C2H5OH

• CH3OH

• C2H4O

• C3H6O

Tags

NGSS.MS-PS1-1

How are atoms connected in a molecule?

• By sharing energy levels

• By sharing electrons

• By sharing neutrons

• By sharing protons

Tags

NGSS.MS-PS1-1

What is the main difference between atoms and molecules?

• Molecules are individual building blocks, and atoms are combinations of these blocks

• Atoms are individual building blocks, and molecules are combinations of these blocks

• Atoms and molecules are the same

• Atoms are larger than molecules