Atomic Structure Quiz

What does the Atomic number of an atom represent?

• Number of protons

• Number of neutrons

• Number of electrons

• Atomic mass

What is the charge of an atom?

• Positive

• Negative

• Neutral

• Depends on the element

What is the protons’ purpose in the atom?

• To balance electrons

• To give the element is identity

• To provide energy

• To form chemical bonds

What is the purpose of the electron?

• To define the element

• To form chemical bonds

• To provide mass

• To stabilize the nucleus

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What particles are in the nucleus?

• Electrons and protons

• Neutrons and electrons

• Protons and neutrons

• Electrons only

What does Carbon-13 mean?

• Carbon with 13 protons

• Carbon with 13 neutrons

• Ccarbon with atomic mass 13

• Carbon with 13 electrons

If an atom has 18 electrons, how many protons does it have?

• 16

• 18

• 20

• 22

Tags

NGSS.MS-PS1-1

An isotope of mercury has 80 protons and 120 neutrons and 80 electrons. What is the atomic mass of this atom?

• 200

• 180

• 160

• 120

Tags

NGSS.MS-PS1-1

How many protons does magnesium (Mg) have?

• 10

• 12

• 14

• 16

Tags

NGSS.MS-PS1-1

How many electrons does an element with atomic number 84 have?

• 80

• 82

• 84

• 86