What are atoms made of?

• Protons, Neutrons, Electrons

• Protons, Neutrons, Molecules

• Electrons, Ions, Molecules

• Protons, Ions, Atoms

Tags

NGSS.MS-PS1-1

What is the unit of measurement of the mass of subatomic particles?

• Kilograms (kg)

• Atomic Mass Units (AMU)

• Newtons (N)

• Joules (J)

Which subatomic particle is negatively charged?

• Proton

• Neutron

• Electron

• Nucleus

Which element is the only one that does not have at least one neutron in its most common form?

• Helium

• Hydrogen

• Oxygen

• Carbon

What primarily occupies the space in an atom?

• Electrons

• Neutrons

• Empty space

• Protons

What is the smallest particle of an element that still retains the properties of the element?

• Molecule

• Atom

• Electron

• Neutron

What is the role of neutrons in the nucleus of an atom?

• They repel protons

• They stabilize the nucleus

• They generate energy

• They attract electrons

Tags

NGSS.HS-PS1-8

Which statement is true about the nucleus of an atom?

• It contains only protons and electrons

• It is not the central core of the atom

• It is the tiny, dense, central core of the atom

• It is mostly empty space

As atoms get bigger, what effect does this have on the nucleus?

• The protons in the nucleus repel each other more

• The nucleus becomes less dense

• The electrons become more stable

• The neutrons decrease in number

Tags

NGSS.HS-PS1-8

What does the atomic number of an element indicate?

• The number of neutrons in the nucleus

• The number of protons in the nucleus

• The total mass of the atom

• The number of electrons around the nucleus