Phosphorus Atomic Structure Concepts

The video tutorial explains how to determine the number of protons, neutrons, electrons, and mass number for phosphorus. It covers the primary isotope phosphorus-31 and the trace isotope phosphorus-32. The atomic number of phosphorus is 15, which equals the number of protons and electrons in a neutral atom. The video details how to calculate the number of neutrons by using the mass number and atomic number. It also explains the concept of isotopes and their abundance, and how to use nuclear notation to represent different isotopes of phosphorus.

What is the atomic number of phosphorus?

• 14

• 15

• 17

• 16

How many protons does a neutral phosphorus atom have?

• 17

• 16

• 15

• 14

In a neutral phosphorus atom, how do the number of protons compare to the number of electrons?

• Protons are more

• Cannot be determined

• They are equal

• Electrons are more

What is the mass number of the most common isotope of phosphorus?

• 30

• 31

• 32

• 33

How many neutrons are present in phosphorus-31?

• 17

• 16

• 15

• 14

What is the mass number of phosphorus-32?

• 30

• 31

• 32

• 33

How many neutrons are present in phosphorus-32?

• 16

• 15

• 17

• 18

What does the nuclear notation for phosphorus-31 include?

• 32 and 16

• 32 and 15

• 31 and 15

• 31 and 14

Which isotope of phosphorus is more abundant?

• Phosphorus-31

• Phosphorus-33

• Phosphorus-30

• Phosphorus-32

What does the average atomic mass of phosphorus reflect?

• The number of protons

• The abundance of isotopes

• Only phosphorus-32

• Only phosphorus-31