Do NOW-Structure of the ATOM

Which subatomic particle has a negative charge?

• Proton

• Neutron

• Electron

• Nucleus

What is the primary role of electrons in an atom?

• Determine the atom's mass

• Balance the charge of protons

• Form chemical bonds

• Stabilize the nucleus

Tags

NGSS.HS-PS1-2

Which subatomic particle is responsible for the chemical properties of an element?

• Proton

• Neutron

• Electron

• Nucleus

What are the fundamental building blocks of matter?

• Molecules

• Atoms

• Cells

• Compounds

Tags

NGSS.MS-PS1-1

Who first proposed the concept of atoms?

• Ancient Roman philosophers

• Ancient Greek philosophers

• Ancient Egyptian philosophers

• Ancient Chinese philosophers

Dalton's Atomic Theory suggests that atoms of a given element are identical in which aspect?

• Shape

• Mass

• Color

• Volume

What is the main feature of Bohr's Model regarding electron movement?

• Electrons move randomly

• Electrons orbit in fixed energy levels

• Electrons are stationary

• Electrons move in a straight line

What happens when electrons jump between energy levels in Bohr's Model?

• They change color

• They emit or absorb energy

• They become protons

• They disappear

Tags

NGSS.HS-PS4-3

Where are protons and neutrons located in an atom?

• In the nucleus

• Orbiting the nucleus

• In the electron cloud

• Outside the atom

Tags

NGSS.MS-PS1-1

Which of the following is NOT a main particle of an atom?

• Proton

• Neutron

• Electron

• Photon

Tags

NGSS.MS-PS1-1