Structure of an Ato

Where are electrons found?

• Outside the nucleus

• Under my bed

• Inside the nucleus

• Inside a proton

The central region of an atom where its neutrons and protons are is its

• nucleus

• core

• electron cloud

• centre

What is the relative charge of an electron?

• 1

• Neutral

• -1

Tags

NGSS.MS-PS1-1

What is the mass number?

• the number of protons

• the sum of the number of protons and the number of neutrons in the nucleus of an atom 

• the number of electrons

• the number of neutrons

All matter is made of

• energy

• electrons

• atoms

• compounds

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

A particle that moves around the nucleus is a(n)...

• Proton

• Neutron

• Electron

• Quark

The subatomic particle that determines the identity of an element.

• neutron

• proton

• electron

• outer shell

What is the smallest unit of an element that retains the properties of that element?

• Atom

• Molecule

• Proton

• Electron

Which subatomic particle has a positive charge?

• Electron

• Neutron

• Proton

• Photon

What is the charge of a neutron?

• Positive

• Negative

• Neutral

• Variable