Protons and Electrons in Tin

This video tutorial explains the relationship between protons, electrons, and atomic numbers for tin (Sn) and its ions, Sn2+ and Sn4+. It highlights that the atomic number, which equals the number of protons, remains constant across neutral and ionized forms of Sn. The video further details how to calculate the number of electrons in Sn ions by considering the loss of electrons indicated by the ion's charge. For Sn2+, two electrons are lost, resulting in 48 electrons, while Sn4+ loses four electrons, leaving 46 electrons. The tutorial also provides a link for further learning about neutrons in tin isotopes.

What is the main focus of the video tutorial?

• The history of tin

• Chemical reactions of tin

• Protons and electrons in Sn2+, Sn4+, and neutral Sn

• The structure of the periodic table

What is the atomic number of tin (Sn)?

• 52

• 50

• 48

• 54

How does the atomic number relate to protons in an atom?

• It is half the number of protons

• It has no relation to protons

• It equals the number of protons

• It is always double the number of protons

In a neutral atom, how do the numbers of protons and electrons compare?

• There are more electrons than protons

• There are more protons than electrons

• It varies depending on the element

• They are equal

What is the charge of a neutral element?

• Positive

• Negative

• Neutral

• It depends on the element

What happens to the number of electrons in Sn2+ compared to neutral Sn?

• It increases by 4

• It decreases by 2

• It remains the same

• It increases by 2

How many electrons are present in Sn4+?

• 50

• 48

• 46

• 44

What does the '2+' in Sn2+ indicate?

• Loss of two protons

• Gain of two electrons

• Loss of two electrons

• Gain of two protons

Where can you find more information about neutrons in tin isotopes?

• In the video comments

• In the video title

• In the periodic table

• In the video description