Determining the Number of protons, neutrons and electrons in an ATOM

This video tutorial explains how to use the periodic table to determine the number of protons, neutrons, and electrons in an atom. It covers the basic structure of atoms, the significance of atomic number and mass, and provides examples using elements like oxygen, magnesium, calcium, and zinc. The tutorial emphasizes the relationship between protons and electrons in neutral atoms and demonstrates how to calculate the number of neutrons using mass number.

What information does the periodic table provide about an element?

• The color of the element

• The chemical reactions it can undergo

• The number of protons, neutrons, and electrons

• The number of isotopes

How can you determine the number of protons in an atom?

• By counting the electrons

• By looking at the atomic mass

• By checking the atomic number

• By measuring the atom's size

Why are atoms considered neutral?

• They have an equal number of protons and electrons

• They have more protons than electrons

• They have no protons or electrons

• They have more electrons than protons

How do you calculate the number of neutrons in an atom?

• Subtract the atomic number from the mass number

• Multiply the atomic number by the mass number

• Divide the mass number by the atomic number

• Add the atomic number to the mass number

In the isotope notation Calcium-41, how many neutrons are present?

• 20

• 21

• 41

• 61