UNIT 2 - Vocabulary

What is the smallest unit of matter that retains the identity of an element?

• The proton

• Neutron

• Atom

• Ion

Which subatomic particle carries a positive charge?

• Neutron

• Proton

• Electron

• Quark

Which subatomic particle has no charge?

• Proton

• Electron

• Neutron

• Quark

Which subatomic particle is found in the electron cloud surrounding the nucleus?

• Proton

• Neutron

• Electron

• Quark

What term refers to the outermost electrons involved in chemical bonding?

• Core electrons

• Valence Electrons

• Protons

• Neutrons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What are the smaller particles that make up protons and neutrons?

• Electrons

• Atoms

• Quarks

• Isotopes

What does the atomic number of an element represent?

• Number of protons

• Number of neutrons

• Number of electrons

• Number of quarks

What does the mass number of an atom represent?

• Number of protons

• Number of neutrons

• Number of electrons

• Number of protons and neutrons

In the periodic table, elements in the same vertical column are in the same…

• Period

• Group

• Chain

• Row

Tags

NGSS.HS-PS1-1

In the periodic table, elements in the same horizontal row are in the same…

• Group

• Period

• Isotope

• Chain

Tags

NGSS.HS-PS1-1