Atoms & Elements

Use the picture of an atom below to answer the question.

Which statement best describes the part of the atom that is shown by the letter B?

• It is an electron, and it has a negative charge.
• It is an electron, and it has a positive charge.
• It is a proton, and it has a negative charge.
• It is a neutron, and it has a neutral charge.

Tags

NGSS.MS-PS1-1

Which of the following is found farthest from the center of an atom?

• nucleus
• proton
• neutron
• electron

The positive particles of an atom are 

• electrons 
• positrons 
• neutrons 
• protons 

Tags

NGSS.MS-PS1-1

Particles in an atom that are neutral and have no charge are 

• negatrons 
• electrons 
• neutrons 
• protons 

What is the atomic number of an element with three protons?

• 2

• 1

• 3

• 6

The subatomic particle with a negative charge is the

• electron
• proton
• neutron
• nucleus 

How many protons does the element in this image contain?

• 14

• 7

• 15

• 18

Tags

NGSS.MS-PS1-1

Where are electrons of an atom found?

• Nucleus
• Electron Cloud
• Some are in the nucleus and some in the electron cloud.
• They are moving everywhere.

Tags

NGSS.MS-PS1-1

The mass of an atom come from the...

• electrons

• nucleus

• protons

• empty space

What two subatomic particles are contained in the nucleus?

• Protons + Electrons

• Neutrons + Electrons

• Atoms

• Protons + Neutrons

Tags

NGSS.MS-PS1-1