Understanding Atoms Chemistry

What are atoms made up of?

• Molecules

• Cells

• Particles

• Subatomic particles

Tags

NGSS.MS-PS1-1

What is the central part of an atom called?

• Electron cloud

• Center

• Core

• Nucleus

What charge do protons have?

• Neutral

• No charge

• Negative

• Positive

What particles are found in the nucleus of an atom?

• Photons

• Protons and neutrons

• Electrons and protons

• Neutrons and electrons

How do electrons orbit the nucleus?

• In a fixed path

• Randomly

• In a linear motion

• In specific orbits or shells

What is the typical radius of an atom?

• 10 to the power of negative 5 meters

• 10 to the power of negative 10 meters

• 10 to the power of negative 15 meters

• 10 to the power of 10 meters

What is the mass of an atom primarily concentrated in?

• Its nucleus

• Its electrons

• Its outer shell

• Its protons

What charge do electrons have?

• Negative

• Positive

• Neutral

• Variable

Approximately how many atoms are in the human body?

• 7 trillion trillion trillion

• 7 million million million

• 7 thousand thousand thousand

• 7 billion billion billion

What can be said about the mass of electrons compared to protons?

• Electrons have no mass

• Electrons are about 2000 times lighter

• Electrons are about 2000 times heavier

• Electrons and protons have the same mass