Toll's Atoms, Ions, and Molecules Quiz

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

• molecule

• atom

• compound

• cell

Tags

NGSS.MS-PS1-1

What are the three subatomic particles that make up an atom?

• protons, neutrons, and positrons

• protons, neutrons, and electrons

• electrons, photons, and neutrinos

• protons, electrons, and quarks

What kind of charge does a proton have?

• Negative

• Positive

• Neutral

• Positron

What kind of charge does an electron have?

• positive

• neutral

• negative

• reluctant

Tags

NGSS.MS-PS1-1

What kind of charge does a neutron have?

• positive

• negative

• No charge, Silly!

  It is neutral!

What is the ATOMIC NUMBER of an element?

• The atomic number of an element is the number of protons in the nucleus of an atom.

• The atomic number of an element is the number of neutrons in the nucleus of an atom.

• The atomic number of an element is the number of electrons in the nucleus of an atom.

• The atomic number of an element is the number of protons and neutrons in the nucleus of an atom.

Tags

NGSS.MS-PS1-1

What is the mass number of an element?

(Also known at the atomic mass)

• The number of protons + neutrons

• The number of neutrons in an element.

• The number of protons in an element.

• The atomic number of an element.

What is an ion?

• An ion is a type of subatomic particle.

• An ion is a form of radiation.

• An ion is a type of chemical bond.

• An ion is an atom or molecule that has gained or lost one or more electrons, resulting in a positive or negative charge.

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

What is the difference between an atom and an ion?

• An atom is composed of protons, neutrons, and electrons, while an ion is composed of only protons and electrons.

• An atom is neutral, while an ion is charged.

• An atom is smaller in size than an ion.

• An atom has a positive charge, while an ion has a negative charge.

What is a molecule?

• A molecule is a type of cell.

• A molecule is a group of atoms bonded together.

• A molecule is a unit of energy.

• A molecule is a form of radiation.

Tags

NGSS.MS-PS1-1