Atoms

The (a)   contains all of the protons and neutrons.

A neutrons charge is (a)   .

The mass of an electron is ​ (a)  

• almost zero
• 1 amu

The mass of a proton is ​ (a)  

• 1 amu
• almost zero

The mass of a neutrons is ​ (a)  

• 1 amu
• almost zero

A protons charge is (a)   .

The (a)   contains all of the electrons.

Tags

NGSS.MS-PS1-1

What does the Bohr Model represent?

• The structure of molecules

• The structure of the Solar System

• The structure of an atom

• The structure of East Hills

Tags

NGSS.MS-PS1-1

What is a valence electron?

• Electrons in the first energy shell

• Electrons in the second energy shell

• Electrons in the outer shell

• Total number of electrons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The innermost energy level has a maximum of how many electrons?

• 1

• 2

• 6

• 8