Unit 1.3 Periodic Table and Atoms

What does the concept of "mostly empty space" in the atomic model imply?

• Atoms are solid and dense.

• Atoms are mostly empty with a small dense nucleus.

• Electrons are located inside the nucleus.

• Atoms are made up of only protons.

Where are electrons located according to the modern atomic model?

• Inside the nucleus.

• In the electron cloud outside the nucleus.

• In the center of the atom.

• In fixed orbits around the nucleus.

What charge do electrons carry in an atom?

• Positive charge.

• Negative charge.

• Neutral charge.

• Double positive charge.

What charge is associated with the atomic number?

• Positive charge

• Negative charge

• Neutral charge

• Variable charge

How many protons does Carbon have?

• 6

• 12

• 8

• 14

Tags

NGSS.MS-PS1-1

What is the charge of a neutron?

• Positive charge

• Negative charge

• Neutral charge

• Double negative charge

How many electrons does a neutral atom of Oxygen have?

• 6

• 8

• 10

• 12

Tags

NGSS.HS-PS1-1

Which subatomic particle determines the identity of an element?

• Electron

• Neutron

• Proton

• Photon

What is the charge of a proton?

• Positive charge

• Negative charge

• Neutral charge

• Double positive charge

Tags

NGSS.HS-PS2-4

Which subatomic particle is responsible for chemical bonding?

• Proton

• Neutron

• Electron

• Photon

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2