________ are the fundamental building units of all matter?

Tags

NGSS.MS-PS1-1

What element makes up most of the universe?

• Hydrogen
• Oxygen
• Helium
• Carbon

Is 'hydrogen' or 'helium' the smallest and lightest atom in the universe​? ​ (a)  

• hydrogen
• helium

What is located at the center of an atom?

• Nucleus
• Electrons
• Protons
• Neutrons

The nucleus is the dense core of an atom and made out of?​ (a)   ​ (b)  

• protons
• neutrons
• electrons
• neurons

Tags

NGSS.MS-PS1-1

Do electrons orbit around the nuclues at incredible speeds?​ (a)  

• Yes
• No

Atoms that have not filled their shells want to fill them. How do they accomplish this?

• Atoms fill their shells by absorbing energy from light.
• Atoms fill their shells by losing electrons to the environment.
• Atoms fill their shells by splitting into smaller atoms.
• Atoms fill their shells by bonding with other atoms.

When atoms bond and join together they fill their shells by sharing electrons or by giving up or taking on electrons. Is this true or false?​ (a)  

• True
• False

Tags

NGSS.HS-PS1-2

Are all atoms the same?

• Yes, all atoms are the same.
• No, all atoms are not the same.

There are many different types of atoms and they get their different properties from the number of '​ (a)   'they have

• particles
• nuclei

Tags

NGSS.MS-PS1-1