Atoms & Isotopes Quiz

What is the relative mass of the proton?

• 1

• 0

• 1/2,000

What is the relative charge of a neutron?

• 1

• 0

• -1

Uranium-235 has 92 protons. How many neutrons does it have?

• 143

• 92

• 235

• 327

What is an isotope?

• Atoms with the same number of protons but different number of electrons

• Atoms with the same number of protons but different number of neutrons

• Atoms with the same number of neutrons but different number of protons

Nitrogen-14 has 7 protons. How many electrons does it have?

• 7

• 14

• 21

• 0

Tags

NGSS.HS-PS1-1

The mass number of an element is ...

• The number of protons and electrons

• The number of protons and neutrons

• The number of electrons and neutrons

The atomic number of an element is ...

• The number of protons

• The number of electrons

• The number of neutrons

What has an ionised atom lost or gained?

• protons

• neutrons

• electrons

• all of the above

What has changed in the structure of the Cu+ ion?

• It has gained two protons

• It has gained two electrons

• It has lost two electrons

• It has lost two protons

Tags

NGSS.HS-PS1-2

Why is deuterium sometimes called heavy hydrogen?

• It has an extra neutron

• It has an extra proton

• 
  It has an extra electron

Tags

NGSS.HS-PS1-8