Concepts in Chemistry
To determine the charge on an electron, Millikan sprayed tiny oil droplets into the top compartment of a drum. Here is an illustration of the drum and its compartments: As you can see, the drum …
Continue Reading about How was the charge and mass of an electron calculated? →
There are two types of nuclear reactions. The first is radioactive decay and second nuclear transmutation. Nuclear reactions are reactions that involve the nucleus of an atom. To understand these …
Continue Reading about What’re nuclear reactions and why do they occur? →
How to calculate the number of electrons in a positive ion To calculate the number of electrons in an ion that carries a positive charge, you must recall that when an ion carries a positive …
Continue Reading about How to calculate the number of electrons in an ion →
How do atoms form ions? An ion is formed when an electron is removed or added to an atom. Pay attention to the word in bold: electron. Recall that an electron has a negative charge, while a …
The subatomic particles are: protons, neutrons and electrons. And they are related to one another by their mass and charge. The properties of these particles are summarized in the table below. …
