Understanding Nitrogen: Atomic Structure

The video tutorial explains how to determine the number of protons, electrons, and neutrons in nitrogen using the periodic table. It covers the atomic number, atomic mass, and mass number, and explains the concept of isotopes. The tutorial also provides a practice exercise for calculating these values for oxygen.

What is the atomic number of nitrogen?

• 6

• 8

• 5

• 7

How many protons does a neutral nitrogen atom have?

• 7

• 5

• 8

• 6

In a neutral nitrogen atom, how many electrons are present?

• 7

• 8

• 6

• 5

How do you calculate the number of neutrons in nitrogen?

• Subtract atomic mass from atomic number

• Add atomic number and atomic mass

• Add atomic number and number of electrons

• Subtract atomic number from atomic mass

What is the mass number of a nitrogen atom with 7 neutrons?

• 12

• 13

• 15

• 14

What is an isotope?

• Atoms with the same number of protons but different electrons

• Atoms with the same number of neutrons but different protons

• Atoms with the same number of protons but different neutrons

• Atoms with the same number of electrons but different neutrons

How many neutrons are in a nitrogen isotope with a mass number of 15?

• 6

• 9

• 7

• 8

What is the difference between atomic mass and mass number?

• Atomic mass is a decimal; mass number is a whole number

• Atomic mass is a whole number; mass number is a decimal

• Both are decimals

• Both are whole numbers

Which of the following is true about atomic mass?

• It is always a whole number

• It is the same as the mass number

• It is a weighted average of isotopes

• It is the sum of protons and electrons

What should you do if you are given an atomic mass with decimals to find the mass number?

• Subtract the atomic number

• Round it to the nearest whole number

• Use it as is

• Add the atomic number