Atomic Structure

Look at this picture of Argon off the periodic table. Which of the following is true for this element?

• 18 protons

• 40 protons

• 22 protons

• 21.9 protons

Tags

NGSS.MS-PS1-1

Look at this picture of Argon off the periodic table. Which of the following is true for this element?

• 18 neutrons

• 40 neutrons

• 22 neutrons

• 21.9 neutrons

Tags

NGSS.MS-PS1-1

Which part of an atom is used to identify it?

• number of protons

• number of neutrons

• number of electrons

Which of the following is correct?

• Protons are positive, electrons are negative, neutrons are neutral.

• Protons are neutral, electrons are negative, neutrons are positive

• Protons are negative, electrons are positive, neutrons are neutral

• Protons are positive, electrons are neutral, neutrons are negative

Tags

NGSS.MS-PS1-1

Protons have a ________ charge.

• positive

• negative

• neutral

What part of the diagram is a. pointing to?

• Electron Cloud

• Protons

• Neutrons

• Nucleus

Tags

NGSS.MS-PS1-1

What part of the diagram is b. pointing to?

• Electron Cloud

• Protons

• Neutrons

• Nucleus

Tags

NGSS.MS-PS1-1

What part of the diagram is c. pointing to?

• Electron Cloud

• Protons

• Neutrons

• Nucleus

Tags

NGSS.MS-PS1-1

Electrons have a ________ charge.

• positive

• negative

• neutral

Tags

NGSS.MS-PS2-3

An atom is the _______ particle of an element that can still represent that element and all of its properties.

• largest

• smallest

• last

• fastest

Tags

NGSS.MS-PS1-1